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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '174') AND (category.subclass = '176') ORDER BY date ASC, patent, type

Total of 17 patents found where: Class is '174'; Subclass is '176';

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T / S Patent Date Description Patentee Category Assigned To
 1883
U 287,092 October 23, 1883 Mechanism for Preventing Induced Currents in Telephone Lines
Pre-transposition technique to eliminate induced current on telephone and telegraph wires		 BRENNAN, James W.
ROUSSEAU, Necter
 Transposition  
 1886
U 336,828 February 23, 1886 Insulator
Hanger for lamp		 TRAVIS, Charles L.
 Hanger  
 1891
U 445,008 January 20, 1891 Insulator
Protective shield for trolley hanger insulator		 VOGLER, William
 Protective Shield  
 1894
U Specimen known 530,706 December 11, 1894 Insulator
Composition insulator with clip ears		 MCCARTHY, Louis
 Composition  
 1906
U 838,482 December 11, 1906 Insulator for Line Conductors
Insulator formed with recesses for pipe pin and metal insert crown		 WEED, James Murray
 Insulator  
 1908
U 904,592 November 24, 1908 Electrical Conductor Support
Multipart insulator attached on top to a bracket and has hook pin screwed in pinhole to hang line wire below		 ALLEN, John Scott
 Multipart  
 1910
U 973,409 October 18, 1910 Insulated Hanger
Tree hanger comprised of cylinder with center groove		 CRABBE, Edward
 Tree  
 1912
U 1,045,353 November 26, 1912 Insulator for Automatically Securing Conducting Wires
Self-tying miscellaneous non-pin type slot-top		 ZACHHUBER, Franz
 Self-tying Miscellaneous  
 1918
U 1,273,015 July 16, 1918 Electric Insulator
Suspension made of several parts bolted together		 THOMAS, Percy H.
 Suspension  
 1924
U 1,498,622 June 24, 1924 Strain Insulator
Strain insulator for high tension lines that is strong and lightweight		 GODDARD, Walter T.
 Strain Locke Insulator Corp.
 1927
U 1,621,246 March 15, 1927 Insulator
High tension insulator made of parts with metal plates bolted to upper and lower surface or suspension disks bolted together		 GODDARD, Walter T.
 Multipart Locke Insulator Corp.
 1931
U 1,815,598 July 21, 1931 Insulating Member for High Tension Construction
Wooden shaft with metal fittings to insulate guy wires on high voltage transmission poles		 STROUP, Charles L.
 Wood  
 1932
U 1,848,622 March 8, 1932 Insulator
Suspension rod with metallic shields to keep upper and lower parts dry to prevent electrical leakage		 GOUVERNEUR, Minor F. H.
 Suspension Locke Insulator Corp.
 1933
U 1,920,978 August 8, 1933 Insulator
Clamp type with lag screw		 FORT, Louis
 Clamp Type  
U 1,931,626 October 24, 1933 Insulator
Threads molded from cement in finished insulator		 STEVENS, Frank J.
 Thread Locke Insulator Corp.
 1934
U 1,960,147 May 22, 1934 Insulator and Method of Treating It
Suspension, glass under cap is etched & treated with graphite		 FULCHER, Gordon S.
 Suspension Corning Glass Works
 1937
U 2,081,832 May 25, 1937 Insulator
Wireholder with hole and lag screw		 MORGENSTERN, Joseph
BRASTY, Joseph
 Wireholder  

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