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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 = '256') AND (category.subclass = '54') ORDER BY date ASC, patent, type

Total of 21 patents found where: Class is '256'; Subclass is '54';

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T / S Patent Date Description Patentee Category Assigned To
 1841
U 2,056 April 19, 1841 Improvement in the Mode of Connecting the Rods of Lightning Conductors, Etc.
Lightning rod attached to building with a hook clip		 STRONG, Justin E.
 Lightning Rod  
 1893
U 491,208 February 7, 1893 Insulator Clip
Tie wire clip		 EDMUNDS, William H.
 Tie Wire  
U Specimen known 504,059 August 29, 1893 Insulator
CD 141.6, bail type clamping lever to hold line wire		 BLACKBURN, George W.
 Insulator  
U Specimen known 508,687 November 14, 1893 Cleat for Electric Wiring
Cleat (2-wire) - 2 piece		 DUGGAN, Frederic A.
 Cleat  
 1895
U 552,501 December 31, 1895 Insulator
Self-tying clamp with cam lever (see 805,169)		 SNIVELY, Charles H.
 Self-tying Miscellaneous  
 1897
U 583,692 June 1, 1897 Insulator
Clamp type with lag screw		 RENAULT, Edward
 Clamp Type  
U 584,235 June 8, 1897 Insulator for Telegraph or Other Electric Wires
Clamp type in holder of similar shape to Cutter		 NESMITH, Christopher C.
ARNETT, George F.
 Clamp Type  
 1898
U 609,888 August 30, 1898 Clamp for Electric Wires
Tie wire clamp with wing nut		 LEONARD, Sylvester S.
 Tie Wire  
 1899
U 619,915 February 21, 1899 Tie-Wire or Clasp for Insulators
Tie wire clip		 WENTWORTH, Fred W.
 Tie Wire The Inventor's Novelty Mfg. Co.
 1900
U 660,140 October 23, 1900 Insulator
Clamp type ribbed cylindrical 2-piece		 ALLEY, Cassius
 Clamp Type 1/3 to C. Miller & H. Wagner
U 664,176 December 18, 1900 Electric Insulator
Knob - self-tying via screw cap		 RISLER, Emil
 Knob  
 1903
U 726,651 April 28, 1903 Electric Wire Support
Glass insert in crossarm to insulate a steel pin that supports the conductor		 CULLEN, Beauregard
 Pin  
U Specimen known 726,846 May 5, 1903 Insulator for Electric Wires
U-181 & CD 207 (sim) self-tying screw top (see 664,432)		 BELL, Joseph R.
 Insulator  
U 746,671 December 15, 1903 Insulator
Self-tying via pivoted locking dogs		 CARTER, Taylor
 Self-tying Miscellaneous  
 1907
U 864,599 August 27, 1907 Insulator Tie for Electric Wires
Tie wire clamp		 BECKETT, James W.
BECKETT, William R.
 Tie Wire  
 1909
U Specimen known 919,386 April 27, 1909 Insulator
Nail knob made by Cook Pottery Co. known as the ""Wedge"" for holding two wires (see article 7273)		 SCHAUB, Ferdinand
 Knob  
U 942,086 December 7, 1909 Support and Insulator
Complicated insulator made of two plates of glass secured in a wooden box		 LINDSAY, Edward F.
 Insulator  
 1910
U Specimen known 965,723 July 26, 1910 Insulator
nail-knob with ball holder. Known as the Paragon knob, which was sold by the Paragon Electric Co.		 MALTHANER, John F.
 Knob  
 1912
U 1,042,199 October 22, 1912 Wire Clamp
Tie wire loop and lever		 CARROLL, Harry L.
 Tie Wire  
 1913
U 1,067,246 July 15, 1913 Wire Clamp for Insulators
Tie wire camming lever		 HUBBARD, John H.
 Tie Wire 1/2 to H. A. Dusky
 1948
U Specimen known 2,450,730 October 5, 1948 Post and Insulator for Electric Fences
Electric fence composed of a rod and adjustable insulator to hold the conductor		 HORD, Guy
 Electric Fence  

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