2 | 1883 Flood |
1 | 1892 Fire |
1 | 1909 Tariff Act |
3 | A. B. Chance Company |
1 | A. L. Dyke |
5 | A. O. Austin |
1 | A.F.G.W.U. |
1 | AC vs DC |
49 | AFGWU |
1 | AT&T |
1 | Accident |
3 | Acme Porcelain Works |
174 | Ad |
14 | Adamant Porcelain Company |
1 | Aeromotor Company |
8 | Aetna Insulator |
1 | Afghanistan |
2 | Agent |
9 | Ajax Line Material Company |
2 | Akron China Company |
31 | Akron Hi-Potential Porcelain Company |
50 | Akron Insulator & Marble Company |
3 | Akron Marble Works |
1 | Akron Marble and Novelty Company |
1 | Akron Pottery Company |
13 | Akron Smoking Pipe Company |
1 | Akron Stone Marble Company |
1 | Akron Toy Company |
4 | Alberhill Coal and Clay Company |
1 | Alberhill Pottery Co. |
28 | Albert & J. M. Anderson Company |
1 | Albert & J. M. Anderson Manufacturing Company |
5 | Albert Vickers |
17 | Alley Agate Company |
45 | Alley Glass Company |
1 | Allgemeine Elektricitaets-Gesellschaft |
1 | American Carbon & Battery Company |
1 | American Carbon Battery Company |
4 | American Electric Porcelain Company |
17 | American Hot Cast Porcelain Company |
11 | American Insulator Company |
11 | American Iron Glass Pipe & Plate Company |
3 | American Lava Company |
1 | American Lava Manufacturing Company |
13 | American Marble & Toy Manufacturing Company |
7 | American Marble Works |
1 | American Porcealain Company |
2 | American Porcelain Company |
5 | American Porcelain Works |
4 | American Potteries Company |
1 | American River |
1 | American Telephone and Telegraph Company |
8 | American Union Telegraph Company |
1 | American Vitrified Conduit Company |
1 | Amos Clifford Shinkle |
63 | Anacortes Glass Company |
5 | Anchor Electric Company |
2 | Anchor Pottery |
34 | Anderson Porcelain Company |
1 | Andrew's Insulator |
1 | Anglo-American Potteries |
3 | Angus Hibbard |
2 | Anna Johnson Hemingray |
11 | Annual Shut-Down |
2 | Anthony Gray |
1 | Apple River |
16 | Arc Light |
3 | Arcing Ring |
2 | Argentina |
3 | Aries Brooke |
3 | Arizona |
75 | Armstrong Cork Company |
1 | Arrowheads |
10 | Arthur Watts |
5 | Artistic Porcelain Company |
2 | Ashworth |
4 | Association of Flint & Lime Glass Manufacturers |
20 | Associations |
1 | Atlantic and Pacific Telegraph Company |
13 | Atlas Glass Company |
4 | Atwood Faience Company |
18 | Aurora, Elgin & Chicago Railway |
7 | Australia |
20 | Australian Glass Manufacturing Company |
1 | Australian Porcelain Company |
2 | Australian Porcelain Company Proprietary, Ltd |
3 | Automatic Machinery Manufacturing & Sales Company |
1 | Babson Brothers Company |
2 | Bain Insulator |
2 | Bakelite |
4 | Baker & Cutting Glassworks |
1 | Bakersfield |
1 | Ball Brothers |
1 | Ball Electric Light Company |
55 | Baltimore Glass Manufacturing Company |
45 | Baltimore and Ohio Telegraph Company |
1 | Bangor |
1 | Bankers & Brokers Telegraph Company |
1 | Barb-Wire Telephone |
32 | Barberton Pottery Company |
2 | Barnes & Kobert Manufacturing Company |
1 | Barton, VT |
8 | Batchelder |
8 | Battery Insulator |
91 | Battery Jar |
143 | Battery Jars |
7 | Baum |
13 | Bay Counties Power Company |
21 | Bay State Glass Works |
3 | Beaver Falls Glass Company |
2 | Bed Insulator |
3 | Belgium |
1 | Bell Insulator |
54 | Bell Pottery Company |
1 | Belleek Potteries |
1 | Benjamin Dinsmore |
7 | Bennett |
15 | Bennington Pottery |
2 | Bentley Plimpton |
4 | Berkshire Glass Sand Company |
1 | Bernard |
36 | Bertram M. Downs |
1 | Bessie Hemingray |
2 | Bibber-White Company |
7 | Big Cottonwood Canyon |
1 | Bird's Nest |
9 | Birmingham Glass Manufacturing Company |
3 | Birth |
1 | Bishop Creek |
1 | Black Glaze |
1 | Block Insulator |
1 | Bloes |
11 | Bloom Jar Company |
2 | Bloomfield |
2 | Blue Lakes |
1 | Boch |
21 | Boch Patent |
1 | Boch-Metsch Porcelain Company |
1 | Bodie |
1 | Bohemia |
1 | Bois D'Arc |
1 | Bolt Insulator |
1 | Borel |
1 | Boro-silicate Glass |
1 | Boston |
11 | Boston Bottle Works |
6 | Boston Electric Light Company |
1 | Boston and Sandwich Glass Company |
2 | Bottles |
50 | Bracket |
1 | Brackets |
33 | Bradford Shinkle |
5 | Bradley A. Fiske |
3 | Bradley Fiske |
1 | Brazil |
1 | Breckenridge |
2 | Brent Mills |
1 | Brett and Little |
14 | Brian Pottery Company |
1 | Brick Insulators |
3 | Bridle Ring |
8 | Bright's Insulator |
35 | Brilliant Glass Company |
1 | Brimstone Insulator |
14 | British Insulator |
3 | British Insulite Company |
1 | Brock Glass Company |
3 | Brodie |
5 | Brodie Electric Company |
2 | Brodie Tree Insulator |
615 | Brookfield |
3 | Brookfield Catalog |
5 | Brookfield Family |
38 | Brookfield Glass Company |
3 | Brown Boveri |
3 | Brown Duplex Insulator |
1 | Brunt |
1 | Brunt & Thompson |
1 | Brunt Porcelain Company |
1 | Brunt Tile & Porcelain Company |
6 | Brunt Tile and Porcelain Company |
14 | Brunt and Thompson |
2 | Brush Electric Light Company |
2 | Brusio |
1 | Bryant Electric Company |
2 | Buck |
1 | Buffalo |
1 | Buller |
1 | Buller & Co. |
1 | Buller & Jobson |
1 | Bunnell |
1 | Bureau Knob |
1 | Burke |
2 | Bus Bar Insulator |
122 | Bushwick Glass Works |
4 | Business Connection |
14 | Business Trip |
1 | Butler Hard Rubber Company |
1 | Butte |
7 | Buzby |
1 | C. E. Eveleth |
1 | C. S. |
24 | C. S. Knowles |
1 | C. W. |
2 | CD 1000 |
1 | CD 1010 |
1 | CD 1012 |
1 | CD 1014 |
1 | CD 102 |
1 | CD 1037 |
5 | CD 1038 |
6 | CD 106 |
1 | CD 109 |
1 | CD 109.5 |
1 | CD 109.7 |
1 | CD 110 |
5 | CD 110.5 |
5 | CD 110.6 |
1 | CD 113 |
1 | CD 114.2 |
1 | CD 116 |
2 | CD 1182 |
3 | CD 121 |
1 | CD 121.4 |
1 | CD 122 |
1 | CD 122.4 |
6 | CD 123 |
1 | CD 124.5 |
1 | CD 125 |
1 | CD 126 |
1 | CD 126.3 |
1 | CD 128 |
2 | CD 132.4 |
1 | CD 134.6 |
9 | CD 135 |
2 | CD 139 |
2 | CD 140 |
2 | CD 141.8 |
2 | CD 141.9 |
1 | CD 143.4 |
6 | CD 144 |
1 | CD 145 |
1 | CD 147 |
1 | CD 150 |
1 | CD 151 |
4 | CD 152 |
2 | CD 154 |
9 | CD 158.6 |
1 | CD 160 |
5 | CD 162 |
1 | CD 162.4 |
1 | CD 176.9 |
2 | CD 178 |
1 | CD 178.2 |
1 | CD 180 |
2 | CD 180.5 |
16 | CD 181 |
1 | CD 185 |
1 | CD 187 |
1 | CD 190 191 |
3 | CD 190-191 |
2 | CD 196 |
1 | CD 196.2 |
4 | CD 202 |
1 | CD 203 |
5 | CD 204 |
1 | CD 206.5 |
3 | CD 207.5 |
1 | CD 208 |
3 | CD 211 |
9 | CD 244 |
5 | CD 245 |
4 | CD 249 |
3 | CD 257 |
7 | CD 259 |
2 | CD 263 |
3 | CD 269 |
4 | CD 282 |
17 | CD 283 |
1 | CD 284 |
2 | CD 286 |
1 | CD 286.9 |
10 | CD 287 |
3 | CD 287.1 |
3 | CD 287.2 |
10 | CD 288 |
6 | CD 293 |
1 | CD 300 |
1 | CD 303 |
13 | CD 303-310 |
5 | CD 304-310 |
3 | CD 308 |
2 | CD 310 |
4 | CD 313 |
4 | CD 313.1 |
2 | CD 317 |
1 | CD 317.5 |
5 | CD 317.8 |
1 | CD 317.9 |
1 | CD 319 |
1 | CD 321 |
1 | CD 331 |
6 | CD 342 |
1 | CD 35 |
1 | CD 36 |
4 | CD 630 |
4 | CD 631 |
1 | CD 732.2 |
3 | CD 734 |
1 | CD ??? |
1 | Cable Insulator Company |
91 | Cadiz Glass Company |
1 | Calgary |
35 | California |
24 | California Electrical Works |
175 | California Glass Insulator Company |
23 | California Glass Works |
4 | Calista Gray |
1 | Callaway County Clay Company |
8 | Cambridge Electric Light Company |
1 | Camilla Shinkle |
19 | Canada |
3 | Canada Glass Company |
1 | Canada Glass Corporation |
1 | Canadian |
1 | Canadian General Electric Company |
4 | Canadian Glass Manufacturing Company |
2 | Canadian Niagara Power Company |
2 | Canadian Ohio Brass Company |
1 | Canadian Pacific Railroad |
5 | Canadian Pacific Railway Company |
1 | Canadian Pacific Railway Telegraph Company |
3 | Canadian Pacific Telegraph |
2 | Canadian Porcelain Company |
3 | Canon City |
1 | Canon Ferry |
8 | Canton Insulator & Clay Company |
3 | Caoutchouc |
1 | Capanema |
1 | Car Stop |
3 | Carey Ohio Porcelain Company |
3 | Carl H. Smith |
1 | Carlotta Campiglio |
5 | Carquinez Straits |
1 | Carrier Circuit |
9 | Carroll Hemingray |
4 | Carroll and Llewellyn Hemingray |
2 | Case Transposition |
8 | Cassius Alley |
1 | Catalog |
2 | Catawba River |
1 | Catenary |
2 | Catherine Hemingray |
2 | Cauvet |
1 | Cement |
1 | Cement-Hood |
1 | Central District & Printing Telegraph Company |
3 | Central Electric Company |
1 | Central Glass Works |
1 | Central Pacific Railroad |
3 | Central Porcelain Works |
1 | Ceramic Electrical Company |
1 | Ceramic Porcelain Company |
6 | Ceramic Products Corporation |
4 | Chambers |
1 | Chambers Lightning Protection Company |
2 | Chambly |
5 | Champion Glass Works |
6 | Champion Porcelain Company |
3 | Champion Spark Plug Company |
2 | Charles Bright |
4 | Charles Howell Cook |
1 | Charles Kimble |
1 | Charles P. Steinmetz |
15 | Charles T. Chester |
6 | Charles Tigner |
1 | Chauvin |
9 | Chelsea Pottery |
2 | Chesapeake and Potomac Telephone Company |
19 | Cheshire Glass Manufacturing Company |
1 | Chesney |
1 | Chicago |
43 | Chicago Insulating Company |
3 | Chicago, Lake Shore and South Bend Railway |
58 | Child Labor |
2 | China |
4 | China Products Company |
1 | Christmas |
3 | Chubbuck |
1 | Cincinnati Porcelain Company |
3 | Circle F Manufacturing Company |
4 | Citizen's Electric Light Company |
9 | Civil War |
1 | Clamp |
1 | Clara Keck |
1 | Clark Electric & Manufacturing Company |
1 | Clarke Electric & Specialty Manufacturing Company |
1 | Clarken Company |
9 | Clay Casting Company |
1 | Clay Forming Company |
1 | Clay Products Company |
78 | Cleat |
2 | Cleveland Paper Insulator |
2 | Climax Porcelain Company |
1 | Climax Pottery Company |
1 | Clincho |
2 | Cloche-Mehun Insulator |
20 | Coal |
1 | Cohansey Glass Company |
1 | Cole Brothers |
1 | Colgate |
13 | Collins Overland Telegraph |
5 | Colonial Insulator Company |
9 | Colonial Sign & Insulator Company |
7 | Colonial Sign Company |
2 | Colophite Manufacturing Company |
1 | Color |
8 | Colorado |
12 | Colorado City Glass Works |
2 | Colorado Electric Power Company |
3 | Columbia Insulator Company |
1 | Columbian Exposition |
1 | Combination Insulator |
1 | Commonwealth Art Pottery and Insulator Company |
1 | Communication Equipment and Engineering Company |
8 | Community Relations |
1 | Compagnie Generale d'Electricite' |
1 | Compagnie Generale d'Electro-Ceramique |
1 | Composition Insulator |
1 | Compressed Air |
1 | Compression Glaze |
1 | Compromise Pattern |
2 | Connecticut |
1 | Connecticut Electric Manufacturing Company |
2 | Connecticut Porcelain Company |
5 | Conover Insulator Company |
6 | Consolidated Electric Light Company |
16 | Consumers Insulator Company |
1 | Continental Rubber Works |
1 | Contract |
7 | Converse |
1 | Conway Taylor |
3 | Conway Taylor Hemingray |
6 | Cook Porcelain Insulator Corporation |
25 | Cook Pottery Company |
1 | Cook's Insulator |
1 | Cooke |
1 | Cooke & Wilson Company |
2 | Cooke-Wilson Electric Supply Company |
1 | Coors Ceramic Company |
4 | Coors Porcelain Company |
2 | Cordeaux |
1 | Cornell |
273 | Corning Glass Works |
1 | Corwico |
1 | Court Cases |
11 | Covington |
21 | Covington Glass Company |
2 | Cowboy Hat |
3 | Creager Cleat |
12 | Creaghead Engineering Company |
2 | Crighton |
1 | Cripple Creek |
2 | Cromwell Fleetwood Varley |
1 | Cross |
5 | Crouse-Hinds Electric Company |
1 | Crown Crystal Glass Company, Ltd. |
17 | Cryolite |
34 | Crystal Glass Company |
1 | Crystal Glass Manufacturing Company |
1 | Crystal Palace |
3 | Crystal Porcelain Company |
33 | Crystalite Products Corporation |
1 | Curry-McQuilken Company |
1 | Cut-Out |
1 | Cut-out |
13 | Cutter |
141 | D. C. Jenkins Glass Company |
48 | D. M. Steward Manufacturing Company |
6 | Daniel Ashworth |
21 | Daniel Carroll Hemingray |
141 | David Brooks |
2 | David Crossley |
1 | David Munson |
4 | Davidson & Stevenson Porcelain Company |
12 | Davidson Porcelain Company |
1 | De Cew Falls |
3 | Dead-end Spool |
1 | Deadend Spool |
101 | Death |
1 | Defuisseaux |
1 | Delta-Bell Insulator |
1 | Denmark |
1 | Dennis Donovan |
32 | Denver |
5 | Derry China Company |
2 | Deseret Telegraph Company |
47 | Detroit Electrical Works |
1 | Diamond Expansion Bolt Company |
64 | Diamond Flint Glass Company |
78 | Diamond Glass Company |
4 | Diamond Porcelain Company |
1 | Die Making |
1 | Dielectrine |
2 | Dillon Glass Works |
2 | Dirigo |
244 | Dominion Glass Company |
2 | Dominion Insulator & Manufacturing Company |
3 | Doulton & Company |
1 | Dry Process |
1 | Dry Spot Insulator |
1 | Duluth |
7 | Duncan |
13 | Dunton & Field |
20 | Duquesne Glass Company |
46 | Dyke |
3 | Dyke Marble and Toy Works |
3 | E. G. Bernard Company |
1 | E. H. Merrill Company |
1 | E. L. Insulator |
18 | E. S. Greeley & Company |
1 | Eagle Porcelain Company |
12 | Eagle Pottery Company |
2 | Earthenware Insulator |
1 | East End China Company |
3 | East End Pottery Company |
2 | East Liverpool |
2 | East Liverpool Potteries Company |
2 | Ebonite |
1 | Economic Conditions |
3 | Ed Tigner |
20 | Edgar Evans |
2 | Edison |
1 | Edward Tigner |
1 | Edwin Clark |
1 | Egg |
1 | Eichberg Tree Insulator |
2 | Electra |
6 | Electric Appliance Company |
1 | Electric Insulator Company |
32 | Electric Porcelain & Manufacturing Company |
28 | Electric Porcelain Company |
2 | Electric Porcelain Manufacturing Company |
2 | Electric Service Supplies Company |
5 | Electric Storage Battery Company |
1 | Electrical China Company |
20 | Electrical Construction & Maintenance Company |
2 | Electrical Exhibitions |
23 | Electrical Glass Corporation |
1 | Electrical Glassware |
8 | Electrical Insulator Manufacturing Company |
2 | Electrical Porcelain |
33 | Electrical Porcelain Company |
1 | Electrical Porcelain Products Company |
41 | Electrical Supply Company Chicago |
1 | Electron |
1 | Electrose |
33 | Electrose Manufacturing Company |
1 | Elektro Porcelain Company |
4 | Elgin and Belvidere Electric Railway |
1 | Elkins Tree Insulator Company |
29 | Ellenville Glass Works |
11 | Elliott |
39 | Elmer Glass Company |
2 | Emminger |
14 | Empire China Works |
1 | Employee |
238 | Employees |
1 | Empreza Electra-Ceramica |
1 | Enggren |
5 | England |
1 | Ernest E. Bilby |
2 | Etheridge |
1 | Etho Insulator |
4 | Etruria Pottery |
3 | Eureka Cleat |
4 | Europe |
1 | European Insulator |
19 | Evans |
2 | Everready Porcelain Company |
1 | Excelsior Glass Company |
1 | Excelsior Pottery Works |
5 | Ezra Cornell |
3 | F. J. Barnard |
1 | FIX DOLLAR |
1 | Factory Equipment |
4 | Factory Rebuild |
1 | Fairmount |
1 | Fairmount Glass Works |
21 | Family |
2 | Faradoid |
3 | Farmer |
4 | Fay Clamp |
10 | Federal Porcelain Company |
2 | Feeder Insulator |
54 | Felix |
5 | Female Labor |
1 | Fernando C. Mesa Company |
15 | Fiberite Company |
21 | Findlay Electric Porcelain Company |
4 | Findlay Glass and Carbon Company |
90 | Fire |
1 | Fire Grenade |
1 | Firebrick Insulator Company |
2 | Fireplug |
3 | First Insulator |
6 | Fisher Electric Company |
2 | Fishing |
3 | Fisk Street Station |
5 | Fiske-Mott |
1 | Fletcher Insulator |
5 | Fletcher Manufacturing Company |
28 | Flood |
5 | Floor Insulator |
2 | Floor Tubes |
4 | Fog |
1 | Fog Box |
1 | Fog Type |
2 | Fog-Type |
1 | Fogbowl |
9 | Folsom |
3 | Folsom-Sacramento |
1 | Ford City Pottery |
75 | Foree Bain |
161 | Foreign |
1 | Foreign Glass |
13 | Foreign Insulator |
6 | Foreign Porcelain |
1 | Fowler Insulator Syndicate |
1 | Fox |
4 | France |
1 | Frank Baum |
30 | Frank Fisher |
1 | Frank H. Riddle |
3 | Frank Riddle |
1 | Franklin Porcelain Company |
311 | Fred Locke |
2 | Fred M. Locke |
2 | Fred M. Locke & Company |
45 | Frederic Duggan |
2 | Frederic Gisborne |
3 | Freeman Electric Company |
5 | Freeman Electric Porcelain Company |
1 | Frenchtown Porcelain Company |
4 | Fresno |
1 | Fritz |
4 | Fruit Jar |
57 | Fuel |
1 | Fuller |
2 | Fuller & Son |
4 | Fuseholder |
35 | G. F. Brunt Porcelain Company |
1 | G. W. Thomas |
1 | GGBBA |
1 | Garrity |
211 | Gayner Glass Works |
257 | General |
60 | General Electric Company |
28 | General Porcelain Company |
9 | George Brunt |
2 | George Floyd |
1 | George Fry |
1 | German |
6 | Germany |
3 | Gerry |
2 | Gilbert |
2 | Gilbert's Shackle Ball |
2 | Gilchrist Jar Company |
1 | Gill Brothers |
3 | Gill Clay Pot Company |
2 | Gingerbread Man |
1 | Ginori |
1 | Gisborne |
1 | Gladding Ceramic Insulator Company |
28 | Glass |
20 | Glass Ballot Box |
4 | Glass Block |
31 | Glass Conduits |
2 | Glass Industry |
38 | Glass Insulator |
1 | Glass Knob |
3 | Glass Milk Pans |
2 | Glass Patent |
1 | Glass Presses |
1 | Glass Ring |
1 | Glass Rosettes |
1 | Glass additives |
3 | Glass vs Porcelain |
1 | Glass-Unknown |
2 | Glaze |
2 | Glaze color |
8 | Glaze-Filled Insulator |
1 | Glaze-filled |
2 | Glazeweld |
1 | Glazewelds |
5 | Gleason-Tiebout Glass Company |
15 | Globe Pottery Company |
3 | Goddard |
1 | Good Manufacturing Company |
2 | Goodyear |
5 | Goodyear Vulcanite Company |
1 | Gordon Battery Company |
18 | Gould & Watson Company |
6 | Gould, Inc. |
3 | Grand Rapids |
2 | Grand Rapids, Holland and Lake Michigan Rapid Railway |
1 | Granite Marbles |
1 | Gravity Insulator |
35 | Gray |
2 | Great Barrington |
1 | Great North Western Telegraph Company |
1 | Great Northwestern Company |
2 | Great Northwestern Telegraph Company |
4 | Greenwood China Company |
11 | Greenwood Pottery Company |
1 | Gromo, Italy |
7 | Guanajuato |
1 | Guard Wire Insulator |
1 | Guido Semenza |
1 | Gustafsberg Pottery |
2 | H. B. Camp Pottery |
269 | H. C. Fry Glass Company |
3 | H. D. Murdock |
1 | H. E. Hoenig |
2 | H. E. Swift Manufacturing Company |
3 | H. H. Cochrane |
1 | H. L. China Company |
7 | H. L. Dixon |
1 | H. Schomburg and Sons Company |
98 | H. T. Paiste |
65 | H. W. Johns Manufacturing Company |
57 | H. W. Johns-Manville Company |
17 | Haley Insulator |
4 | Hall China Company |
1 | Hamilton |
5 | Hamilton Glass Company |
24 | Hammond Cleat & Insulator Company |
2 | Hanson |
84 | Hardware |
1 | Hardwood Insulator |
66 | Harloe Insulator Company |
1 | Harold Buck |
1 | Harrison G. Dyar |
1 | Harrison G. Dyer |
1 | Hartford Electric Light Company |
22 | Hartford Faience Company |
2 | Hawken |
5880 | Hemingray |
922 | Hemingray Family |
707 | Hemingray Glass Company |
1 | Hemingray, Joseph C. |
1 | Hemingray, Ralph |
5 | Hemingray, Ralph Gray |
1 | Hemingray, Robert |
2 | Hemming Manufacturing Company |
1 | Hendee |
7 | Henry Brunt |
3 | Henry Brunt and Son |
15 | Henry Floy |
4 | Henry M. Byllesby |
1 | Hermsdorf Porzellanfabrik |
2 | Hetherington Insulator |
1 | Hewett |
16 | Hewlett |
1 | High-Tension Line Construction |
1 | High-Voltage Transmission |
1 | Hillsboro |
2 | Hiram Sibley |
3 | History |
3 | Hollinger |
1 | Holtville |
3 | Home Telephone Company |
50 | Homer Brooke |
1 | Homes |
2 | Honesdale Glass Manufacturing Company |
1 | Honesdale, PA |
3 | Hook |
2 | Hoosac Tunnel |
1 | Hopewell Insulating and Manufacturing Company |
1 | Horn Insulator |
8 | House Insulator |
12 | Houston Glass Company |
14 | Houston Glass Works |
1 | Hudson Bay Company |
7 | Hudson Porcelain Company |
5 | Hudson River |
2 | I-T-E Circuit Breaker Company |
4 | I-T-E Imperial Corporation |
1 | I. W. Richardson |
1 | Idaho |
4 | Ideal Cleat |
1 | Illinois |
15 | Illinois Electric Porcelain Company |
175 | Imperial Porcelain Works |
2 | India |
1 | India Rubber |
1 | Indian Garden Manufacturing Company |
1 | Indian Telegraph |
1 | Indiana Gas Belt |
2 | Industrial Ceramics, Incorporated |
2 | Ingram |
1 | Inkstand |
41 | Insulator |
1 | Insulator Cement |
1 | Insulator Clamps |
1 | Insulator Cleaning |
1 | Insulator Company |
17 | Insulator Design |
1 | Insulator Glaze |
1 | Insulator Manufacture |
1 | Insulator Manufacturer |
1 | Insulator Problems |
24 | Insulator Testing |
1 | Insulator Trouble |
1 | Interborough Rapid Transit Company |
1 | International Oxygen Company |
1 | International Pottery Company |
1 | Internet |
126 | Interurban Railway |
2 | Investments |
2 | Ireland |
1 | Iron Pin |
8 | Iron-clad Insulator |
1 | Irradiation |
1 | Italian Insulator |
11 | Italy |
1 | J. A. Creighton |
1 | J. D. West & Company |
7 | J. H. Parker |
1 | J. J. Speed |
1 | J. S. Allen |
5 | Jack Waggoner |
2 | James C. Gill |
22 | James Foley |
4 | James H. Brookfield |
11 | James M. Brookfield |
1 | James Reid |
1 | James Stiff & Sons |
4 | Japan |
1 | Jay Gould |
18 | Jeffery-Dewitt Company |
37 | Jeffery-Dewitt Insulator Company |
3 | Jeffrey Manufacturing Company |
35 | Jeptha Wade |
1 | Jobson |
4 | John Barclay |
10 | John Boch |
3 | John C. Gray |
1 | John Crisp |
24 | John Croskey |
1 | John Fuller |
2 | John Lapp |
10 | John S. Lapp |
2 | John W. Boch |
2 | John Woodman |
1 | Johns-Manville |
7 | Johns-Pratt Company |
1 | Johnson |
33 | Johnson & Phillips |
1 | Johnston |
1 | Jonathan Coxon |
5 | Joseph A. Jeffery |
9 | Joseph Bourne & Son |
12 | Joseph Conway |
2 | Joseph Cook |
1 | Joseph Crossley |
1 | Joseph Jeffery |
1 | Joseph Ranson |
1 | Joslyn |
1 | Joslyn Manufacturing and Supply Company |
1 | Jumbo |
1 | Kaolin |
1 | Karlsbader Kaolin-Industrie-Gesellschaft |
1 | Keck |
13 | Kenosha Insulator Company |
9 | Kern River |
22 | Kerr Glass Manufacturing Corporation |
1 | Keystone Truss Pin |
2 | Kilgour |
6 | Kimble |
141 | Kimble Glass Company |
208 | King City Glass Works |
1 | King Insulating Company |
1 | Kleinsteuber Patent |
85 | Knapp Electrical Works |
50 | Knob |
4 | Knowles |
1 | Knowles, Taylor & Knowles |
4 | Knox Porcelain Company |
1 | Kohl |
11 | Kokomo Opalescent Glass Company |
2 | Kootenay |
1 | Kribs |
1 | Kryolite |
41 | L. G. Tillotson |
3 | L. P. Roberts |
2 | LaClede Carbon & Electric Company |
7 | Labor Organizations |
174 | Labor Relations |
2 | Labor Union |
1 | Lachine Rapids |
2 | Laclede Carbon & Electric Company |
1 | Lake Shore Electric Railway |
1 | Lamps |
4 | Langdon |
2 | Lansing, St. Johns and St. Louis Railway |
15 | Lapp Insulator Company |
1 | Lapp Insulators LLC |
12 | Latimer Clark |
14 | Lauffen-Frankfort |
52 | Lava Insulator |
2 | Lawrence Gray |
18 | Lefferts |
39 | Leonard Glass Works |
1 | Lewis Stillwell |
3 | Lightning Arrester |
2 | Lightning Damage |
2 | Lightning Protection |
7 | Lightning Rod |
7 | Lightning Rod Balls |
12 | Lightning Rod Insulator |
55 | Lima Insulator Company |
3 | Line Construction |
4 | Line Material Company |
11 | Llewellyn Matthews Hemingray |
5 | Local No. 23 |
1 | Locke |
1 | Locke 25; CD 242 |
1 | Locke Home |
1 | Locke Insulator Company |
4 | Locke Insulator Corporation |
260 | Locke Insulator Manufacturing Company |
2 | Locke Insulators, Incorporated |
1 | Lockport-Buffalo |
1 | Long Beach Glass Company |
1 | Long Island Flint Glass Works |
1 | Long Island Railroad |
1 | Louis Locke |
17 | Louis Steinberger |
2 | Louisville Glass Works |
1 | Lowell |
1 | Lowell Massachusetts |
1 | Luzerne Rubber Company |
22 | Lynchburg Glass Corporation |
64 | Lynchburg Glass Works |
42 | Lyndeboro Glass Company |
2 | Lyon |
3 | Lytle & Company |
1 | M&E |
1 | M-2011 |
7 | M-2121 |
2 | M-2122 |
1 | M-2123 |
1 | M-2141 |
5 | M-2150 |
1 | M-2202 |
1 | M-2221 |
3 | M-2230 |
1 | M-2254 |
1 | M-2275 |
5 | M-2332 |
2 | M-2336 |
1 | M-2401 |
1 | M-2402 |
6 | M-2430 |
1 | M-2505 |
2 | M-2740 |
1 | M-2750B |
2 | M-2785 |
29 | M-2795 |
3 | M-2796 |
1 | M-2842 |
1 | M-2996 |
8 | M-2998 |
1 | M-3022 |
5 | M-3060 |
1 | M-3062 |
1 | M-3065 |
4 | M-3070 |
1 | M-3110 |
1 | M-3150A |
1 | M-3161 |
1 | M-3170 |
2 | M-3230 |
1 | M-3236 |
1 | M-3240 |
10 | M-3250 |
4 | M-3285 |
1 | M-3401 |
1 | M-3440A |
1 | M-3450 |
1 | M-3452 |
1 | M-3465 |
1 | M-3471 |
1 | M-3490 |
2 | M-3721 |
1 | M-3721A |
33 | M-3725 |
1 | M-3735 |
16 | M-3740 |
1 | M-3800 |
9 | M-3890 |
1 | M-3900 |
1 | M-3940 |
1 | M-3950 |
2 | M-3990 |
1 | M-3XXX |
1 | M-4105 |
1 | M-4320 |
7 | M-4321 |
1 | M-4321A |
14 | M-4325 |
2 | M-4325A |
1 | M-4325C |
3 | M-4338 |
1 | M-4340 |
2 | M-4345 |
1 | M-4380 |
5 | M-4384 |
1 | M-4390 |
1 | M-4415 |
2 | M-4600 |
1 | M-4605 |
2 | M-4606 |
1 | M-4608 |
8 | M-4800 |
1 | M. Kirchberger & Company |
1 | M. M. Fleron and Son, Inc. |
6 | M. M. Wood |
1 | MILAN-PADERNO, ITALY |
1 | Macomb |
1 | Macomb Pottery Company |
1 | Maddock Pottery Co. |
1 | Maggie Hemingray Young |
2 | Maine |
1 | Maintenance |
2 | Manasquan |
36 | Manhattan Electrical Supply Company |
1 | Manhattan Railway Company |
8 | Marbles |
1 | Marlatt |
1 | Marmolite Insulator |
2 | Marriage |
3 | Marshall Lefferts |
6 | Martin Kalbfleisch |
1 | Mary Ann Carroll Hemingray |
35 | Mary Cross |
2 | Massachusetts |
5 | Massie |
50 | Matthews |
5 | McAbee |
102 | McBride Glass Company |
5 | McDonald Glass Hanger Board |
2 | McGraw Electric |
1 | McGrory |
1 | McGrory Insulator |
98 | McLaughlin Glass Company |
1 | McLeod, Ward & Company |
1 | Mechanicville |
7 | Medalta Potteries Ltd. |
15 | Medbery |
1 | Merson Type |
1 | Mexico |
2 | Mica Insulator |
68 | Mica Insulator Company |
1 | Micarta |
6 | Micarta-Core Insulator |
2 | Michigan |
1 | Michigan Porcelain Insulator Company |
1 | Milan-Paderno |
2 | Military |
2 | Military Telegraph |
1 | Mill Creek |
8 | Minerallac Electric Company |
2 | Minnesota |
4 | Minot K. Holmes |
5 | Miscellaneous |
5 | Missouri River Power Company |
8 | Mogadore Insulator Company |
1 | Mold |
1 | Mold Making |
3 | Molds |
2 | Montana Power Company |
3 | Montreal |
5 | Montreal Telegraph Company |
6 | Morse |
1 | Morton Harloe |
2 | Move to Muncie |
1 | Mrs. Robert Carroll Hemingray |
1 | Multicone Insulator |
5 | Muncie |
1 | NAPBG |
1 | NGK Insulators, Limited |
1 | NGK Insulators, Ltd |
1 | Nail Knob |
1 | Nancy Timberlake Hemingray |
9 | Nashold Cleat Company |
1 | National Ceramic Company |
1 | National China Company |
1 | National Convention |
8 | National Electric Porcelain Company |
4 | National Glass Company |
12 | National Glass Works |
38 | National Insulator Company |
7 | National Porcelain Company |
31 | Natural Gas |
1 | Necaxa, Mexico |
63 | Need Image |
1 | Nembro, Italy |
4 | Nester |
1 | Nesting-Cone |
1 | Nevada City |
1 | Nevada County |
1 | New |
1 | New Brunswick Porcelain Company |
1 | New England |
1 | New England Electric Company |
4 | New England Glass Manufacturing Company |
1 | New England Glass Works |
2 | New England Telephone & Telegraph Company |
2 | New Granite Glass Works |
2 | New Jersey |
88 | New Lexington High Voltage Porcelain Company |
1 | New Mexico |
1 | New Westminster & Burrard Inlet Telephone Company |
16 | New York |
5 | New Zealand |
1 | Newton Porcelain Company |
4 | Newtown Porcelain Works |
52 | Niagara |
3 | Niagara Falls |
15 | Niagara Falls Buffalo Transmission Line |
2 | Niagara Falls Power Company |
2 | Niagara Falls-Buffalo |
4 | Niagara, Lockport and Ontario Power Company |
1 | Niagara-Toronto |
3 | Nicholson |
4 | No-Leak |
11 | Noah Boch |
1 | Noeggerath |
1 | Non-Breakable Insulator Company |
7 | North American Glass Company |
1 | North American Telegraph Company |
2 | North Carolina |
1 | North Mountain |
1 | North Shore |
5 | Noti Insulator Company |
2 | Novelty Clay Forming Company |
100 | Novelty Glass Company |
1 | O'Neill Machine Company |
1 | Oakland Glass Works |
8 | Oakman |
15 | Oakman Manufacturing Company |
1 | Odd |
1 | Odd Insulator |
3 | Ogden |
111 | Ohio Brass Company |
5 | Ohio Insulator Company |
10 | Ohio Porcelain Company |
6 | Ohio River |
55 | Ohio Valley Glass Company |
1 | Oil |
11 | Oil Can |
46 | Oil Insulator |
2 | Old Insulator |
4 | Onondaga Pottery Company |
1 | Ontario |
12 | Ontario Glass Company |
2 | Oppenheimer Insulator |
5 | Oregon |
6 | Otis |
1 | Ottawa Glass Company |
2 | Overhead Construction |
1 | Overland Telegraph |
296 | Owens-Illinois Glass Company |
1 | P. E. M. CO. Knob |
2 | P. N. Nunn |
2 | Pacific Gas & Electric Company |
2 | Pacific Glass Casket Company |
1 | Pacific Glass Works |
4 | Pacific Pottery Company |
2 | Pacific Telegraph |
2 | Pacific and Atlantic Telegraph Company |
4 | Paderno |
6 | Paisley |
1 | Paiste |
1 | Paper Insulator |
2 | Paragon Self-Tying Knob |
2 | Paragon Sellers Company |
2 | Parker Porcelain Company |
1 | Partz Electric Company |
164 | Pass & Seymour |
131 | Patent |
5 | Patent Office |
1 | Patent Self-Binding Telegraph Insulator Company |
5 | Paul Seiler |
1 | Peerless Tree Insulator |
1 | Peirce |
3 | Peirce Specialty Company |
1 | Pell's Fluid Insulator |
7 | Pelzer |
31 | Pendleton Glass Tube & Pipe Works |
2 | Pennsylvania |
2 | Pennsylvania China Company |
29 | Pennycuick |
7 | Percival |
2 | Perfect |
9 | Perfection Glass Company |
2 | Perrine |
1 | Persian Telegraph |
105 | Peru Electric Manufacturing Company |
4 | Peru Glass & Carbon Works |
1 | Peru Glass and Carbon Company |
1 | Peru Porcelain Works |
1 | Peter Cooper |
1 | Pettingell-Andrews Company |
5 | Pettingill Andrews & Company |
1 | Pettingill-Andrews Company |
1 | Philadelphia |
1 | Philadelphia Insulator Company |
1 | Philip McAbee |
2 | Phillips |
1 | Phoenix Glass Company |
1 | Piano insulator |
3 | Pike's Peak |
20 | Pilkington Brothers, Ltd. |
68 | Pin |
1 | Pin Base |
8 | Pinco |
1 | Pinder Bourne |
1 | Pinder, Bourne & Company |
7 | Pins |
1 | Pioneer Glass Company |
3 | Pioneer Glass Works |
10 | Pittsburg High Voltage Insulator Company |
1 | Pittsburg Transformer Company |
7 | Pittsburg Voltage Insulator Company |
2 | Pittsburgh |
3 | Placerville & Humboldt Telegraph Company |
1 | Placerville Humboldt Telegraph |
16 | Pluto |
1 | Pogo |
2 | Poles |
15 | Political |
1 | Politics |
10 | Pomona |
7 | Pond |
1 | Poor Image |
7 | Pope |
37 | Porcelain |
1 | Porcelain Appliance Company |
1 | Porcelain Appliance Corporation |
5 | Porcelain Electric Manufacturing Company |
1 | Porcelain History |
36 | Porcelain Insulator |
4 | Porcelain Insulator Company |
36 | Porcelain Manufacture |
2 | Porcelain Products Company |
4 | Porcelain Products, Incorporated |
8 | Porcelain vs Glass |
1 | Porzellanfabrik |
1 | Post Insulator |
1 | Postal |
9 | Postal Telegraph Company |
1 | Pot-Head |
1 | Pots |
1 | Pottery |
395 | Power Transmission |
1 | Price Fixing |
10 | Problems |
25 | Producer Gas |
9 | Products |
5 | Provo |
9 | Provo Insulator |
1 | Provo No. 1 |
2 | Prussian Insulator |
1 | Pseudoscience |
1 | Publications |
1 | Puyallup |
35 | Pyrex |
4 | Quebec |
1 | Queensland |
202 | R. Thomas & Sons Company |
6 | RFI |
19 | Radio Antenna Insulator |
2 | Radio Interference |
1 | Radio Treatment |
2 | Railway |
1 | Railway Crossing |
27 | Ralph Gray |
20 | Ralph Gray Hemingray |
26 | Ralph Mershon |
3 | Rams Horn |
2 | Randolph Insulator Company |
1 | Raquette River |
6 | Ravenswood Porcelain Company |
1 | Raw Materials |
5 | Real Estate |
14 | Reconstructed Granite Company |
1 | Red Insulators |
11 | Redlands |
3 | Refrigerator Bottle |
1 | Reid Brothers |
1 | Reminiscences |
1 | Reyburn, Hunter & Company |
2 | Richard Evans |
10 | Richard Ginori |
1 | Richard Thomas |
1 | Richardo Patent |
7 | Richardson |
1 | Richelieu Village |
2 | Richmond Glass Works |
1 | Riverside |
1 | Riverside, CA |
4 | Robert "Robin" Hemingray |
11 | Robert Carroll Hemingray |
17 | Robert Good |
15 | Robert Hemingray |
1 | Robert J Hemingray |
1 | Robert Jobsson |
1 | Robert McMicking |
3 | Robinson-Merrill Pottery Company |
1 | Rochester, Syracuse & Eastern Railroad |
83 | Rodefer |
1 | Rogers |
1 | Rome-Tivoli |
7 | Rosette |
4 | Royal E. House |
4 | Rubber |
14 | Rude |
1 | Rush Insulator |
1 | Russia |
1 | Russian |
1 | Russian Insulator |
10 | S. C. Dyke & Company |
6 | S. McKee & Company |
1 | Safety Insulator |
1 | Saint Gobain |
1 | Salamander Insulator |
12 | Salem Glass Company |
1 | Sales |
1 | Salesman Sample Insulator |
5 | Samuel F. B. Morse |
96 | Samuel Oakman |
1 | San Francisco & Pacific Glass Works |
4 | San Francisco Glass Works |
18 | San Francisco and Pacific Glass Works |
1 | San Joaquin Light and Power Company |
1 | San Joaquin Valley |
1 | Santa Ana Canyon |
1 | Sawsey |
2 | Schomburg |
1 | Schonberg |
1 | Schrage |
1 | Scott |
12 | Screw-top |
1 | Sea Weed Insulator |
5 | Seattle |
16 | Security Insulator Company |
1 | Sediver |
1 | Seims and Baker Brothers |
1 | Self-Tying |
10 | Self-Tying Insulator |
1 | Semenza |
1 | Shackle |
1 | Sharpe |
1 | Shaw China Company |
2 | Shaw Insulator Company |
1 | Shaw Pottery Company |
1 | Shawinigan |
4 | Shawinigan Falls |
15 | Shay, Stephens & Company |
26 | Shinkle |
2 | Shop |
1 | Shoshone |
11 | Siemens |
2 | Siemens Brothers & Company, Ltd. |
1 | Siemens, Halske & Co. |
1 | Signal Corp |
1 | Sillimanite |
1 | Silverton |
2 | Simonds |
4 | Simplest Cleat |
1 | Simplex Electrical Company |
2 | Simpson Foundry & Engineering Company |
1 | Single-Fire |
27 | Slater Lewis |
1 | Smith |
1 | Smith & Stone |
4 | Smith-Grip |
1 | Smith-Phillips China Company |
1 | Snoqualmie |
5 | Snoqualmie Falls |
6 | Snyder-Hunt Company |
3 | Social Event |
4 | Societa Ceramica Richard Ginori |
3 | South Carolina |
52 | Southern Porcelain Manufacturing Company |
4 | Southern Power Company |
3 | Southern Telegraph Company |
1 | Spain |
2 | Spanish Insulator |
1 | Spears |
1 | Specialty Porcelain Works |
1 | Spier Falls |
1 | Split Knob |
4 | Spokane |
2 | Sports |
2 | Spring River Power Company |
3 | Square D Company |
1 | St. John Glass Company |
1 | St. Lawrence River |
4 | St. Louis |
1 | St. Louis Malleable Casting Company |
5 | Standard China Works |
2 | Standard Electric Company |
13 | Standard Glass Insulator Company |
5 | Standard Porcelain Company |
1 | Standard Pottery Company |
3 | Standard Vitrified Conduit Company |
47 | Star Porcelain Company |
1 | Starr |
1 | Steatite Insulator |
1 | Steel Towers |
1 | Stephen M. Chester |
2 | Sterling Electric Company |
16 | Sterling Glass Company |
1 | Stewart McKee |
1 | Stiff & Son |
1 | Stillwell |
1 | Stockton, CA |
1 | Stone Insulators |
1 | Storm |
2 | Storm Damage |
2 | Strain |
24 | Strain Insulator |
2 | Street Light Hook |
2 | Street Railway Construction |
27 | Strike |
1 | String Telephone |
1 | Summit Porcelain Company |
2 | Sun Colored Amethyst |
5 | Sun Porcelain Company |
1 | Sunlight Lava Manufacturing Company |
1 | Super-Porcelain Insulator Company |
8 | Superior Porcelain Company |
1 | Surge |
5 | Susan Ashley |
4 | Susan Ashley Hemingray |
47 | Suspension |
9 | Suspension Insulator |
2 | Swasey |
1 | Sweden |
4 | Switzerland |
53 | Sydenham Glass Company |
1 | Sydenham Pottery |
1 | Syracuse |
1 | Syracuse, Lake Shore & Northern Railway |
1 | T. C. White Company |
2 | Tacoma |
3 | Taftville |
4 | Target Balls |
3 | Taylor Falls |
2 | Taylor, Tunnicliff & Company |
22 | Telegraph |
1 | Telegraph Line |
4 | Telegraph Lines |
1 | Telegraph Poles |
10 | Telephone |
2 | Telephone Construction |
1 | Telephone Insulator |
1 | Telephone Line Construction |
10 | Telluride |
5 | Telluride Power Company |
1 | Terra-Cotta Insulator |
2 | Testing |
5 | Thames Glass Works |
50 | Third Rail Insulator |
1 | Third Rail Insulators |
1 | Third-Rail Insulator |
1 | Thomas 6T |
1 | Thomas 9S |
84 | Thomas China Company |
1 | Thomas Davenport |
2 | Thomas Eckert |
2 | Thompson-Brown Electric Company |
4 | Thomson-Houston Electric Company |
1 | Three Rivers |
1 | Three Rivers, Quebec |
1 | Thuyer's Insulator |
1 | Tibbatts |
11 | Tid Bits |
3 | Tie Wire |
3 | Tiffin Pottery |
9 | Timberlake |
1 | Tireless Insulator Company |
1 | To Do |
1 | Tonawanda |
2 | Toronto |
20 | Torrance Glass & Color Works |
1 | Tower |
2 | Toys |
2 | Transandean Associates |
1 | Transcontinental Telegraph Company |
1 | Transformer |
2 | Transmission Line |
3 | Transposition |
44 | Tree Insulator |
4 | Trenle Porcelain Company |
2 | Trenton China Company |
1 | Trenton Fire Clay & Porcelain Company |
17 | Trenton Porcelain Company |
8 | Trenton Potteries Company |
1 | Triangle M |
1 | Trimble Patent Insulator Company |
1 | Trolley |
59 | Trolley Insulator |
1 | Trumbull Electric Manufacturing Company |
4 | Tube |
1 | Twiggs |
1 | Type C |
1 | Type E |
1 | U-1257 |
1 | U-1363 |
1 | U-1364 |
2 | U-146 |
2 | U-146A |
1 | U-183 |
1 | U-184 |
2 | U-192A |
1 | U-193 |
3 | U-196 |
1 | U-1966 |
1 | U-2028 |
2 | U-207C |
1 | U-212 |
1 | U-2840 |
1 | U-2841 |
2 | U-2911 |
2 | U-2914 |
1 | U-2918 |
1 | U-3 |
2 | U-376A |
1 | U-380 |
2 | U-4 |
4 | U-401 |
4 | U-401A |
1 | U-529A |
1 | U-585 |
1 | U-608A |
1 | U-610 |
1 | U-610A |
2 | U-648 |
2 | U-669 |
1 | U-670A |
1 | U-675A |
3 | U-701 |
2 | U-710 |
2 | U-731A |
25 | U-744 |
14 | U-746 |
1 | U-81 |
1 | U-82 |
2 | U-922 |
1 | U-922A |
14 | U-923 |
1 | U-923A |
3 | U-923B |
14 | U-923C |
2 | U-923F |
1 | U-924 |
6 | U-925 |
1 | U-926 |
5 | U-927 |
4 | U-927A |
1 | U-927B |
18 | U-928 |
6 | U-928A |
2 | U-928B |
1 | U-930 |
2 | U-931A |
2 | U-932 |
1 | U-933 |
2 | U-933A |
16 | U-934 |
6 | U-935 |
8 | U-935A |
33 | U-937 |
1 | U-938 |
4 | U-939 |
2 | U-939A |
6 | U-940 |
1 | U-940B |
1 | U-940C |
1 | U-941 |
1 | U-941B |
3 | U-944 |
6 | U-945 |
1 | U-954D |
3 | U-957 |
1 | U-957A |
2 | U-961 |
2 | U-963 |
3 | U-964 |
1 | U-964B |
14 | U-966 |
1 | U-966A |
4 | U-966B |
1 | U-967 |
1 | U-967A |
1 | U-968 |
2 | U-968A |
5 | U-979 |
2 | U-98 |
5 | U-980 |
6 | U-981 |
2 | U-982 |
2 | U-983 |
4 | U. S. Electric Porcelain Company |
2 | Union |
1 | Union Electric Porcelain Company |
1 | Union Electrical Porcelain Company |
9 | Union Electrical Porcelain Works |
1 | Union Pacific Railway |
19 | Union Porcelain Works |
2 | United Glass and Ceramic Workers of North America |
1 | United States |
25 | United States Electric Porcelain Company |
38 | United States Glass Company |
1 | United States Insulator Company |
4 | United States Porcelain Company |
11 | United States Pottery Company |
7 | Unity Insulator |
3 | Universal Clay Products Company |
3 | Universal Specialty Company |
9 | Unknown |
1 | Unknown Porcelain Plant by Trenton Men |
6 | Utah |
1 | Vail |
54 | Valverde Glass Works |
6 | Vandalism |
21 | Varley |
1 | Victor Insulators |
19 | Victor Insulators, Incorporated |
3 | Victor Tree Insulator |
5 | Vidriera Monterey |
1 | Virginia |
4 | Virginia Matthews |
16 | Virginia Potteries Company |
1 | Vulcanite Mfg. Company |
1 | Wade Insulator |
1 | Wages |
33 | Wagner Glass Company |
6 | Wagner Glass Works |
2 | Waipori |
1 | Walker |
1 | Walker Mining & Manufacturing Company |
1 | Wall Bushing |
16 | Wall Tube |
1 | Walter T. Goddard |
2 | Wannopee Pottery Company |
1 | War |
1 | Ward Insulator |
3 | Warren Kimble |
14 | Washington |
4 | Washington Porcelain Company |
4 | Washington Pottery |
1 | Webb |
6 | Wedding |
1 | West Virginia Glass Works |
7 | Western Electric Company |
3 | Western Electric Manufacturing Company |
1 | Western Electrical Porcelain Company |
25 | Western Flint Glass Company |
1 | Western Glass Association |
79 | Western Glass Manufacturing Company |
2 | Western States Porcelain Company |
31 | Western Union Telegraph Company |
33 | Westinghouse |
35 | Westinghouse Glass Manufacturing Company |
4 | Westinghouse High Voltage Insulator Company |
2 | Wetern Union Telegraph Company |
3 | Wheeling Tile Company |
228 | Whitall Tatum Company |
1 | Whitall-Tatum Company |
1 | White Glaze |
2 | Whitney Glass Works |
1 | Willamette |
1 | Willamette River |
1 | Willard P. Zimmerman |
2 | Willard Paul Zimmerman |
1 | Willets Manufacturing Company |
1 | William Brooke |
11 | William Brookfield |
5 | William Brunt |
48 | William Brunt Pottery Company |
28 | William Brunt and Company |
4 | William F. Modes |
2 | William H. Farrar |
1 | William J. Miller |
1 | William Miller Machinery |
1 | Winnepeg |
3 | Winnipeg |
1 | Winooski Vermont |
2 | Wirt |
3 | Wirt Manufacturing Company |
1 | Wisconsin |
1 | Witch's Hat Insulator |
1 | Wood |
1 | Wooden Cleat |
6 | Wooden Insulator |
2 | Woolbert Insulator |
3 | Worchester Polytechnic Institute |
4 | World's Fair |
47 | Wormser Glass Company |
1 | Yadkin River |
1 | Yandell |
1 | Yockel |
1 | Yuba River |
1 | Z. C. Robbins |
1 | Z. G. Simmons |
1 | Zurich |
3 | incomplete |
1 | need image |
1 | 1909 Tariff Act |
3 | A. B. Chance Company |
2 | A. O. Austin |
1 | AC vs DC |
17 | AFGWU |
2 | Acme Porcelain Works |
10 | Adamant Porcelain Company |
1 | Aeromotor Company |
1 | Aetna Insulator |
9 | Ajax Line Material Company |
19 | Akron Hi-Potential Porcelain Company |
30 | Akron Insulator & Marble Company |
1 | Akron Marble Works |
1 | Akron Pottery Company |
7 | Akron Smoking Pipe Company |
1 | Akron Stone Marble Company |
1 | Akron Toy Company |
4 | Alberhill Coal and Clay Company |
22 | Albert & J. M. Anderson Company |
45 | Alley Glass Company |
1 | Allgemeine Elektricitaets-Gesellschaft |
1 | American Carbon Battery Company |
4 | American Electric Porcelain Company |
11 | American Insulator Company |
8 | American Iron Glass Pipe & Plate Company |
2 | American Lava Company |
10 | American Marble & Toy Manufacturing Company |
6 | American Marble Works |
1 | American Porcealain Company |
1 | American Porcelain Company |
1 | American Porcelain Works |
3 | American Union Telegraph Company |
1 | American Vitrified Conduit Company |
62 | Anacortes Glass Company |
2 | Anchor Electric Company |
2 | Anchor Pottery |
27 | Anderson Porcelain Company |
1 | Andrew's Insulator |
1 | Anglo-American Potteries |
3 | Angus Hibbard |
3 | Arc Light |
1 | Aries Brooke |
73 | Armstrong Cork Company |
6 | Arthur Watts |
2 | Artistic Porcelain Company |
1 | Atlantic and Pacific Telegraph Company |
4 | Atwood Faience Company |
13 | Aurora, Elgin & Chicago Railway |
4 | Australia |
20 | Australian Glass Manufacturing Company |
1 | Australian Porcelain Company |
1 | Babson Brothers Company |
2 | Bain Insulator |
1 | Bakelite |
1 | Ball Electric Light Company |
53 | Baltimore Glass Manufacturing Company |
42 | Baltimore and Ohio Telegraph Company |
16 | Barberton Pottery Company |
1 | Barnes & Kobert Manufacturing Company |
7 | Batchelder |
4 | Battery Insulator |
58 | Battery Jar |
4 | Baum |
21 | Bay State Glass Works |
2 | Beaver Falls Glass Company |
2 | Bed Insulator |
35 | Bell Pottery Company |
1 | Belleek Potteries |
2 | Bennett |
10 | Bennington Pottery |
2 | Bentley Plimpton |
3 | Berkshire Glass Sand Company |
2 | Bibber-White Company |
1 | Bird's Nest |
9 | Birmingham Glass Manufacturing Company |
1 | Bloomfield |
3 | Boch Patent |
6 | Boston Bottle Works |
6 | Boston Electric Light Company |
1 | Boston and Sandwich Glass Company |
4 | Bracket |
5 | Bradley A. Fiske |
3 | Bradley Fiske |
1 | Brent Mills |
14 | Brian Pottery Company |
5 | Bright's Insulator |
34 | Brilliant Glass Company |
8 | British Insulator |
2 | British Insulite Company |
1 | Brodie |
4 | Brodie Electric Company |
556 | Brookfield |
3 | Brookfield Catalog |
2 | Brookfield Family |
33 | Brookfield Glass Company |
1 | Brunt |
1 | Brunt Porcelain Company |
4 | Brunt Tile and Porcelain Company |
11 | Brunt and Thompson |
2 | Brush Electric Light Company |
1 | Bryant Electric Company |
1 | Buller & Co. |
1 | Bus Bar Insulator |
4 | Bushwick Glass Works |
7 | Buzby |
7 | C. S. Knowles |
1 | CD 283 |
1 | Cable Insulator Company |
89 | Cadiz Glass Company |
22 | California Electrical Works |
171 | California Glass Insulator Company |
2 | California Glass Works |
1 | Callaway County Clay Company |
8 | Cambridge Electric Light Company |
1 | Canada |
2 | Canada Glass Company |
1 | Canada Glass Corporation |
4 | Canadian Glass Manufacturing Company |
1 | Canadian Niagara Power Company |
3 | Canadian Pacific Railway Company |
3 | Canadian Pacific Telegraph |
2 | Canadian Porcelain Company |
7 | Canton Insulator & Clay Company |
3 | Carey Ohio Porcelain Company |
2 | Cassius Alley |
1 | Catenary |
1 | Central District & Printing Telegraph Company |
3 | Central Electric Company |
3 | Central Porcelain Works |
1 | Ceramic Electrical Company |
3 | Ceramic Products Corporation |
4 | Chambers |
2 | Champion Porcelain Company |
1 | Charles Howell Cook |
1 | Charles Kimble |
13 | Charles T. Chester |
2 | Charles Tigner |
9 | Chelsea Pottery |
2 | Chesapeake and Potomac Telephone Company |
1 | Cheshire Glass Manufacturing Company |
39 | Chicago Insulating Company |
1 | Chicago, Lake Shore and South Bend Railway |
2 | Citizen's Electric Light Company |
1 | Civil War |
1 | Clark Electric & Manufacturing Company |
1 | Clay Forming Company |
1 | Clay Products Company |
23 | Cleat |
2 | Cleveland Paper Insulator |
1 | Climax Porcelain Company |
1 | Climax Pottery Company |
1 | Clincho |
1 | Cloche-Mehun Insulator |
1 | Cohansey Glass Company |
13 | Collins Overland Telegraph |
7 | Colonial Sign & Insulator Company |
2 | Colonial Sign Company |
2 | Colophite Manufacturing Company |
3 | Columbia Insulator Company |
1 | Communication Equipment and Engineering Company |
1 | Composition Insulator |
1 | Connecticut Electric Manufacturing Company |
5 | Conover Insulator Company |
6 | Consolidated Electric Light Company |
3 | Consumers Insulator Company |
6 | Cook Porcelain Insulator Corporation |
18 | Cook Pottery Company |
1 | Cooke & Wilson Company |
1 | Cooke-Wilson Electric Supply Company |
3 | Coors Porcelain Company |
268 | Corning Glass Works |
1 | Corwico |
1 | Covington Glass Company |
11 | Creaghead Engineering Company |
2 | Cromwell Fleetwood Varley |
5 | Crouse-Hinds Electric Company |
16 | Cryolite |
33 | Crystal Glass Company |
1 | Crystal Glass Manufacturing Company |
2 | Crystal Porcelain Company |
32 | Crystalite Products Corporation |
1 | Curry-McQuilken Company |
2 | Cutter |
133 | D. C. Jenkins Glass Company |
46 | D. M. Steward Manufacturing Company |
112 | David Brooks |
3 | Davidson & Stevenson Porcelain Company |
7 | Davidson Porcelain Company |
1 | Dead-end Spool |
20 | Denver |
2 | Derry China Company |
2 | Deseret Telegraph Company |
34 | Detroit Electrical Works |
62 | Diamond Flint Glass Company |
73 | Diamond Glass Company |
1 | Dielectrine |
1 | Dirigo |
234 | Dominion Glass Company |
2 | Dominion Insulator & Manufacturing Company |
1 | Dry Spot Insulator |
10 | Dunton & Field |
18 | Duquesne Glass Company |
8 | Dyke |
2 | Dyke Marble and Toy Works |
2 | E. G. Bernard Company |
1 | E. L. Insulator |
9 | E. S. Greeley & Company |
1 | Eagle Porcelain Company |
8 | Eagle Pottery Company |
2 | East End Pottery Company |
1 | East Liverpool |
2 | East Liverpool Potteries Company |
2 | Edison |
3 | Electric Appliance Company |
23 | Electric Porcelain & Manufacturing Company |
10 | Electric Porcelain Company |
2 | Electric Storage Battery Company |
19 | Electrical Construction & Maintenance Company |
2 | Electrical Exhibitions |
19 | Electrical Glass Corporation |
1 | Electrical Glassware |
3 | Electrical Insulator Manufacturing Company |
2 | Electrical Porcelain |
29 | Electrical Porcelain Company |
1 | Electrical Porcelain Products Company |
36 | Electrical Supply Company Chicago |
27 | Electrose Manufacturing Company |
28 | Ellenville Glass Works |
3 | Elliott |
22 | Elmer Glass Company |
1 | Emminger |
13 | Empire China Works |
1 | Etho Insulator |
4 | Etruria Pottery |
2 | Everready Porcelain Company |
1 | Excelsior Glass Company |
3 | Ezra Cornell |
1 | Fairmount |
1 | Farmer |
4 | Fay Clamp |
4 | Federal Porcelain Company |
2 | Feeder Insulator |
1 | Fernando C. Mesa Company |
15 | Fiberite Company |
12 | Findlay Electric Porcelain Company |
4 | Findlay Glass and Carbon Company |
5 | Fire |
1 | Fireplug |
1 | First Insulator |
4 | Fisher Electric Company |
2 | Fiske-Mott |
1 | Fletcher Insulator |
3 | Floor Insulator |
1 | Floor Tubes |
1 | Fog-Type |
1 | Folsom |
72 | Foree Bain |
86 | Foreign |
1 | Foreign Glass |
13 | Foreign Insulator |
6 | Foreign Porcelain |
14 | Frank Fisher |
3 | Frank Riddle |
213 | Fred Locke |
1 | Fred M. Locke |
1 | Frederic Duggan |
2 | Frederic Gisborne |
1 | Freeman Electric Company |
3 | Freeman Electric Porcelain Company |
1 | Frenchtown Porcelain Company |
2 | Fuel |
2 | Fuseholder |
15 | G. F. Brunt Porcelain Company |
1 | Garrity |
200 | Gayner Glass Works |
256 | General |
22 | General Electric Company |
13 | General Porcelain Company |
7 | George Brunt |
2 | Gilbert |
1 | Gisborne |
1 | Gladding Ceramic Insulator Company |
2 | Glass |
1 | Glass Block |
31 | Glass Conduits |
2 | Glass Industry |
27 | Glass Insulator |
1 | Glass Knob |
1 | Glass Ring |
1 | Glass additives |
1 | Glaze color |
4 | Gleason-Tiebout Glass Company |
11 | Globe Pottery Company |
1 | Goodyear |
5 | Goodyear Vulcanite Company |
1 | Gordon Battery Company |
16 | Gould & Watson Company |
5 | Gould, Inc. |
1 | Gravity Insulator |
3 | Greenwood China Company |
7 | Greenwood Pottery Company |
1 | Gustafsberg Pottery |
265 | H. C. Fry Glass Company |
1 | H. D. Murdock |
2 | H. E. Swift Manufacturing Company |
3 | H. H. Cochrane |
1 | H. L. China Company |
92 | H. T. Paiste |
58 | H. W. Johns Manufacturing Company |
52 | H. W. Johns-Manville Company |
4 | Hamilton Glass Company |
23 | Hammond Cleat & Insulator Company |
76 | Hardware |
62 | Harloe Insulator Company |
11 | Hartford Faience Company |
5821 | Hemingray |
877 | Hemingray Family |
623 | Hemingray Glass Company |
1 | Hemingray, Joseph C. |
1 | Hemingray, Robert |
2 | Hemming Manufacturing Company |
1 | Hendee |
6 | Henry Brunt |
3 | Henry Brunt and Son |
14 | Henry Floy |
2 | Henry M. Byllesby |
1 | Hetherington Insulator |
2 | Hewlett |
1 | High-Tension Line Construction |
1 | High-Voltage Transmission |
2 | Hiram Sibley |
3 | Home Telephone Company |
46 | Homer Brooke |
2 | Honesdale Glass Manufacturing Company |
1 | Hoosac Tunnel |
1 | Horn Insulator |
3 | House Insulator |
12 | Houston Glass Company |
2 | Houston Glass Works |
7 | Hudson Porcelain Company |
1 | I-T-E Circuit Breaker Company |
1 | I-T-E Imperial Corporation |
9 | Illinois Electric Porcelain Company |
109 | Imperial Porcelain Works |
1 | India Rubber |
1 | Indian Garden Manufacturing Company |
1 | Indian Telegraph |
1 | Industrial Ceramics, Incorporated |
1 | Inkstand |
40 | Insulator |
1 | Insulator Cement |
1 | Insulator Cleaning |
1 | Insulator Company |
15 | Insulator Design |
1 | Insulator Glaze |
1 | Insulator Manufacturer |
1 | Insulator Problems |
20 | Insulator Testing |
1 | Insulator Trouble |
1 | Internet |
21 | Interurban Railway |
1 | Iron Pin |
2 | Iron-clad Insulator |
1 | J. A. Creighton |
1 | J. H. Parker |
1 | J. J. Speed |
1 | J. S. Allen |
4 | James H. Brookfield |
6 | James M. Brookfield |
1 | James Reid |
1 | James Stiff & Sons |
1 | Jay Gould |
6 | Jeffery-Dewitt Company |
26 | Jeffery-Dewitt Insulator Company |
2 | Jeffrey Manufacturing Company |
14 | Jeptha Wade |
4 | John Barclay |
4 | John Boch |
7 | John Croskey |
1 | John Fuller |
1 | John Lapp |
7 | John S. Lapp |
1 | John W. Boch |
1 | John Woodman |
7 | Johns-Pratt Company |
1 | Johnson |
13 | Johnson & Phillips |
1 | Johnston |
4 | Joseph Bourne & Son |
1 | Joseph Crossley |
1 | Joseph Jeffery |
1 | Joseph Ranson |
3 | Kenosha Insulator Company |
21 | Kerr Glass Manufacturing Corporation |
1 | Keystone Truss Pin |
206 | King City Glass Works |
81 | Knapp Electrical Works |
24 | Knob |
1 | Knowles, Taylor & Knowles |
4 | Knox Porcelain Company |
11 | Kokomo Opalescent Glass Company |
1 | Kribs |
34 | L. G. Tillotson |
3 | L. P. Roberts |
2 | LaClede Carbon & Electric Company |
7 | Labor Organizations |
7 | Labor Relations |
2 | Laclede Carbon & Electric Company |
1 | Lake Shore Electric Railway |
1 | Langdon |
12 | Lapp Insulator Company |
1 | Lapp Insulators LLC |
5 | Latimer Clark |
10 | Lauffen-Frankfort |
1 | Lava Insulator |
1 | Lawrence Gray |
9 | Lefferts |
14 | Leonard Glass Works |
1 | Lewis Stillwell |
2 | Lightning Damage |
1 | Lightning Protection |
5 | Lightning Rod |
4 | Lightning Rod Balls |
9 | Lightning Rod Insulator |
33 | Lima Insulator Company |
3 | Line Construction |
1 | Locke 25; CD 242 |
155 | Locke Insulator Manufacturing Company |
1 | Long Island Railroad |
2 | Louis Steinberger |
2 | Louisville Glass Works |
1 | Luzerne Rubber Company |
18 | Lynchburg Glass Corporation |
43 | Lynchburg Glass Works |
41 | Lyndeboro Glass Company |
1 | M-2150 |
1 | M. Kirchberger & Company |
1 | Macomb |
1 | Maintenance |
35 | Manhattan Electrical Supply Company |
1 | Marbles |
1 | Marlatt |
3 | Marshall Lefferts |
4 | Martin Kalbfleisch |
102 | McBride Glass Company |
1 | McGraw Electric |
95 | McLaughlin Glass Company |
7 | Medalta Potteries Ltd. |
1 | Mica Insulator |
67 | Mica Insulator Company |
1 | Micarta |
1 | Michigan Porcelain Insulator Company |
2 | Military Telegraph |
5 | Minerallac Electric Company |
5 | Miscellaneous |
2 | Mogadore Insulator Company |
5 | Montreal Telegraph Company |
1 | Morton Harloe |
1 | NAPBG |
1 | Nail Knob |
7 | Nashold Cleat Company |
1 | National China Company |
3 | National Electric Porcelain Company |
2 | National Glass Company |
1 | National Glass Works |
27 | National Insulator Company |
1 | National Porcelain Company |
1 | New Brunswick Porcelain Company |
1 | New England Electric Company |
4 | New England Glass Manufacturing Company |
2 | New England Telephone & Telegraph Company |
2 | New Granite Glass Works |
65 | New Lexington High Voltage Porcelain Company |
1 | New Westminster & Burrard Inlet Telephone Company |
1 | New Zealand |
1 | Newton Porcelain Company |
1 | Newtown Porcelain Works |
6 | Niagara |
1 | Niagara Falls |
6 | Niagara Falls Buffalo Transmission Line |
8 | Noah Boch |
1 | Non-Breakable Insulator Company |
5 | North American Glass Company |
1 | North American Telegraph Company |
5 | Noti Insulator Company |
1 | Novelty Clay Forming Company |
87 | Novelty Glass Company |
1 | Oakland Glass Works |
1 | Oakman |
1 | Oakman Manufacturing Company |
1 | Odd Insulator |
80 | Ohio Brass Company |
2 | Ohio Insulator Company |
1 | Ohio Porcelain Company |
50 | Ohio Valley Glass Company |
17 | Oil Insulator |
2 | Old Insulator |
9 | Ontario Glass Company |
2 | Oppenheimer Insulator |
2 | Otis |
1 | Ottawa Glass Company |
2 | Overhead Construction |
22 | Owens-Illinois Glass Company |
2 | P. N. Nunn |
1 | Pacific Glass Works |
4 | Pacific Pottery Company |
2 | Pacific Telegraph |
6 | Paisley |
1 | Paper Insulator |
2 | Paragon Self-Tying Knob |
145 | Pass & Seymour |
1 | Patent |
2 | Paul Seiler |
2 | Pennsylvania China Company |
7 | Pennycuick |
9 | Perfection Glass Company |
1 | Persian Telegraph |
92 | Peru Electric Manufacturing Company |
4 | Peru Glass & Carbon Works |
4 | Pettingill Andrews & Company |
1 | Philadelphia Insulator Company |
1 | Phillips |
1 | Piano insulator |
20 | Pilkington Brothers, Ltd. |
6 | Pin |
6 | Pinco |
1 | Pinder, Bourne & Company |
1 | Pins |
2 | Pioneer Glass Works |
8 | Pittsburg High Voltage Insulator Company |
1 | Pittsburg Transformer Company |
7 | Pittsburg Voltage Insulator Company |
1 | Pluto |
1 | Pogo |
2 | Poles |
2 | Pomona |
4 | Pond |
3 | Pope |
14 | Porcelain |
1 | Porcelain Appliance Company |
1 | Porcelain Appliance Corporation |
2 | Porcelain Electric Manufacturing Company |
27 | Porcelain Insulator |
4 | Porcelain Insulator Company |
23 | Porcelain Manufacture |
3 | Porcelain Products, Incorporated |
6 | Porcelain vs Glass |
8 | Postal Telegraph Company |
1 | Pottery |
359 | Power Transmission |
1 | Problems |
1 | Publications |
100 | R. Thomas & Sons Company |
6 | RFI |
4 | Radio Antenna Insulator |
2 | Radio Interference |
2 | Railway |
14 | Ralph Mershon |
1 | Rams Horn |
2 | Randolph Insulator Company |
2 | Ravenswood Porcelain Company |
8 | Reconstructed Granite Company |
1 | Red Insulators |
2 | Redlands |
2 | Richard Ginori |
1 | Richard Thomas |
2 | Richmond Glass Works |
8 | Robert Good |
1 | Robert Jobsson |
1 | Robert McMicking |
1 | Robinson-Merrill Pottery Company |
77 | Rodefer |
2 | Rosette |
3 | Royal E. House |
1 | Rubber |
1 | Rush Insulator |
7 | S. C. Dyke & Company |
4 | S. McKee & Company |
1 | Safety Insulator |
1 | Salamander Insulator |
12 | Salem Glass Company |
4 | Samuel F. B. Morse |
78 | Samuel Oakman |
4 | San Francisco Glass Works |
14 | San Francisco and Pacific Glass Works |
12 | Screw-top |
1 | Sea Weed Insulator |
15 | Security Insulator Company |
3 | Self-Tying Insulator |
1 | Sharpe |
1 | Shaw Insulator Company |
15 | Shay, Stephens & Company |
1 | Siemens |
1 | Siemens Brothers & Company, Ltd. |
1 | Signal Corp |
1 | Simonds |
1 | Simplest Cleat |
1 | Simplex Electrical Company |
12 | Slater Lewis |
1 | Smith & Stone |
1 | Smith-Grip |
1 | Smith-Phillips China Company |
2 | Snyder-Hunt Company |
2 | Societa Ceramica Richard Ginori |
50 | Southern Porcelain Manufacturing Company |
3 | Southern Telegraph Company |
1 | Spears |
2 | Square D Company |
1 | St. John Glass Company |
3 | Standard China Works |
12 | Standard Glass Insulator Company |
2 | Standard Porcelain Company |
1 | Standard Pottery Company |
2 | Standard Vitrified Conduit Company |
31 | Star Porcelain Company |
1 | Steatite Insulator |
1 | Stephen M. Chester |
2 | Sterling Electric Company |
15 | Sterling Glass Company |
1 | Storm Damage |
9 | Strain Insulator |
2 | Strike |
1 | Summit Porcelain Company |
2 | Sun Colored Amethyst |
3 | Sun Porcelain Company |
1 | Sunlight Lava Manufacturing Company |
1 | Super-Porcelain Insulator Company |
5 | Superior Porcelain Company |
10 | Suspension |
3 | Suspension Insulator |
48 | Sydenham Glass Company |
1 | T. C. White Company |
1 | Target Balls |
1 | Taylor, Tunnicliff & Company |
17 | Telegraph |
1 | Telegraph Line |
1 | Telegraph Lines |
1 | Telegraph Poles |
3 | Telephone |
2 | Telephone Construction |
1 | Telephone Insulator |
1 | Telephone Line Construction |
2 | Telluride |
2 | Telluride Power Company |
1 | Terra-Cotta Insulator |
5 | Thames Glass Works |
25 | Third Rail Insulator |
79 | Thomas China Company |
1 | Thomas Davenport |
2 | Thomas Eckert |
2 | Thomson-Houston Electric Company |
1 | Thuyer's Insulator |
3 | Tid Bits |
1 | Tireless Insulator Company |
1 | To Do |
20 | Torrance Glass & Color Works |
2 | Transandean Associates |
2 | Transmission Line |
22 | Tree Insulator |
2 | Trenle Porcelain Company |
11 | Trenton Porcelain Company |
2 | Trenton Potteries Company |
1 | Trolley |
27 | Trolley Insulator |
1 | Trumbull Electric Manufacturing Company |
1 | Twiggs |
1 | U-937 |
1 | U. S. Electric Porcelain Company |
5 | Union Electrical Porcelain Works |
14 | Union Porcelain Works |
7 | United States Electric Porcelain Company |
38 | United States Glass Company |
1 | United States Insulator Company |
1 | United States Porcelain Company |
5 | United States Pottery Company |
3 | Universal Clay Products Company |
2 | Universal Specialty Company |
5 | Unknown |
1 | Unknown Porcelain Plant by Trenton Men |
23 | Valverde Glass Works |
4 | Vandalism |
6 | Varley |
7 | Victor Insulators, Incorporated |
2 | Vidriera Monterey |
5 | Virginia Potteries Company |
1 | Vulcanite Mfg. Company |
28 | Wagner Glass Company |
1 | Walker Mining & Manufacturing Company |
1 | Wall Bushing |
8 | Wall Tube |
2 | Wannopee Pottery Company |
1 | Ward Insulator |
1 | Warren Kimble |
4 | Washington Porcelain Company |
3 | Washington Pottery |
1 | West Virginia Glass Works |
4 | Western Electric Company |
3 | Western Electric Manufacturing Company |
1 | Western Electrical Porcelain Company |
24 | Western Flint Glass Company |
1 | Western Glass Association |
78 | Western Glass Manufacturing Company |
2 | Western States Porcelain Company |
6 | Western Union Telegraph Company |
21 | Westinghouse |
35 | Westinghouse Glass Manufacturing Company |
2 | Westinghouse High Voltage Insulator Company |
171 | Whitall Tatum Company |
1 | Willets Manufacturing Company |
1 | William Brooke |
6 | William Brookfield |
1 | William Brunt |
39 | William Brunt Pottery Company |
3 | William F. Modes |
2 | William H. Farrar |
1 | Wooden Cleat |
4 | Wooden Insulator |
2 | Woolbert Insulator |
1 | Worchester Polytechnic Institute |
3 | World's Fair |
43 | Wormser Glass Company |
1 | Yandell |
1 | Yockel |
1 | Z. C. Robbins |