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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 = '248') AND (category.subclass = '71') ORDER BY date ASC, patent, type

Total of 28 patents found where: Class is '248'; Subclass is '71';

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T / S Patent Date Description Patentee Category Assigned To
 1870
U 106,426 August 16, 1870 Improvement in Clasps for Lightning Rods
A lightning rod holder made of two parts held together with a clip and point to drive into the building		 STREET, Richard
 Lightning Rod  
 1883
U 271,825 February 6, 1883 Fastening for Electric Circuit Wires
Miscellaneous grooved round insulator to hold wire & secured with a staple		 FISKE, Henry G.
 Miscellaneous  
 1884
U 296,485 April 8, 1884 Means for Supporting and Insulating Electrical Wires
Wedge block for side of pole or driven in hole in crossarm		 TRINGHAM, John Watson
 Wedge  
 1885
U 330,173 November 10, 1885 Means for Supporting Electrical Wires
Pin split with metal cap to hold wire		 TRINGHAM, John Watson
 Pin  
 1887
U 368,284 August 16, 1887 Electric Wire Clamp Insulator
Cleat - clamp type		 FLETCHER, John R.
 Cleat  
 1890
U 441,849 December 2, 1890 Electric Line Hook
Hook made of iron to secure line wire with threaded end to screw in crossarm		 LOCKE, Fred M.
LAPP, John
 Hook 1/3 to Theodore Norton
 1896
U 562,528 June 23, 1896 Wire Holder
Odd wireholder with two fins or ears that hold the wire		 HAKANSSON, Louis M.
 Wireholder  
U 565,944 August 18, 1896 Insulator Support
Pin		 TOWARD, Charles P.
 Pin  
U 573,101 December 15, 1896 Wall Insulator
Slack wire ring driven into mortar between bricks		 O'NEILL, James J.
 Slack Wire  
 1902
U 693,213 February 11, 1902 Anchor Fastener for Lightning Conductors
Metal clips fitted between bricks in order to secure lightning rod conductor to wall		 BAJOHR, Carl
 Lightning Rod Clip  
 1908
U 887,358 May 12, 1908 Wall Bracket
Insulator pin bracket		 SWORTFIGER, George F.
 Bracket  
U 907,834 December 29, 1908 Insulator
Slack wire holder with nail spike		 MARSHALL, George B.
 Slack Wire  
 1909
U 918,905 April 20, 1909 Insulator
Clamp type with split ring and lag screw		 POND, Benjamin A.
 Clamp Type  
 1910
U 973,409 October 18, 1910 Insulated Hanger
Tree hanger comprised of cylinder with center groove		 CRABBE, Edward
 Tree  
 1917
U Specimen known 1,218,181 March 6, 1917 Insulator Knob
nail-knob made by Cook Pottery Co. known as the ""Wedge"".		 HOMER, John W.
 Knob  
 1920
U Specimen known 1,329,656 February 3, 1920 Insulator
Nail knob made by Triangle M (Illinois Electric Porcelain Co.) with captivated nail. (DIXIE NAILIT)		 FARGO, Arthur H.
 Knob Charles Tremain
 1922
U 1,429,369 September 19, 1922 Attaching Device
Knob		 PARKER, William M.
 Knob J. H. Parker & Son, Inc.
 1923
U 1,474,736 November 20, 1923 Insulator
Knob		 SCHAUB, Ferdinand
 Knob  
 1935
U 2,022,386 November 26, 1935 Conductor Support
Little bracket with insulator crown to hold low voltage wire attached to a wood pole (see 2,198,839)		 PITTMAN, Ralph R.
 Miscellaneous  
 1937
U 2,099,098 November 16, 1937 Bracket for Electrical Wires
Wireholder with lag screw		 BINKLEY, William J.
 Wireholder James R. Kearney Corp.
 1939
U 2,150,995 March 21, 1939 Wire Bracket
Wireholder bracket with lag screw that allows bracket and insulator movement.		 TALLMAN, Oscar F.
 Bracket/wireholder James R. Kearney Corp.
U 2,155,189 April 18, 1939 Electrical Wire Bracket
Wireholder with lag screw		 HEINRICH, Walter A.
 Wireholder James R. Kearney Corp.
U Specimen known 2,174,723 October 3, 1939 Insulator
Wireholder with metal loop, base & lag screw		 HOCHER, Andrew A.
 Wireholder Hubbard & Co.
 1940
U 2,224,361 December 10, 1940 Insulator
Wireholder with lag screw		 SEELYE, Howard P.
 Wireholder  
 1942
U 2,269,409 January 6, 1942 Wire Holder
Wireholder with lag screw		 MCCHESNEY, JR., Samuel Waldrop
 Wireholder Porcelain Products, Inc.
U 2,286,496 June 16, 1942 Wire Holder
Wireholder with lag screw		 MEYER, Edwin M.
 Wireholder Porcelain Products, Inc.
 1951
U 2,571,495 October 16, 1951 Adjustable Insulator Bracket
Wireholder bracket for secondary rack insulators that also functions to aid in stringing the wire without damage to the bracket.		 STEINMAYER, Alwin G.
 Wireholder/bracket/rack Spool McGraw Electric Co.
 1960
U 2,935,553 May 3, 1960 Electrical Knob Insulator
Nail-knob with center bushing to secure nail		 SHOWMAN, Robert L.
 Knob A. B. Chance Co.

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