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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 = '152G') ORDER BY date ASC, patent, type

Total of 13 patents found where: Class is '174'; Subclass is '152G';

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T / S Patent Date Description Patentee Category Assigned To
 1866
U 58,594 October 9, 1866 Improvement in Telegraph Insulators
Hook with metal shell fastened at right angle to pole		 BURNAP, William H.
BRASSINGTON, John D.
 Hook  
 1894
U 517,591 April 3, 1894 Insulating Tube
Wall tube with longitudinal fin ribs		 ROBINSON, Miner
 Wall Tube  
U 522,428 July 3, 1894 Insulator
Wall tube secured with a clip		 MACE, Romaine
 Wall Tube The Interior Conduit & Insulation Co.
 1895
U 542,924 July 16, 1895 House Wiring Fixture
Porcelain device to allow passage of electrical wires through plaster walls or ceiling		 CASE, Charles F.
 Miscellaneous  
 1907
U 870,486 November 5, 1907 Conducting Wire Support and Insulator
Split insulator with external threads to screw into hole in crossarm to hold line wire		 WISTNER, Harvey W.
 Miscellaneous  
 1908
U 883,227 March 31, 1908 Insulator
Odd cylindrical insulator with slot of top to hold line wire and threaded exterior to screw into a hold bored in the crossarm and a set screw on top to secure the line wire		 PADDEN, Edward F.
 Miscellaneous  
 1909
U 912,364 February 16, 1909 Insulator for Electrically Charges Wires
Tube for routing wires through wood with spring clip attached to the outside of the tube to prevent the tube from slipping out.		 CONRAD, Stonewall Jackson
 Wall Tube  
 1915
U 1,158,105 October 26, 1915 Insulating Tube
Wall tube with wedge projections (made by Illinois Electric Porcelain Co.)		 CALLENDER, Edwin F.
 Wall Tube 1/2 to Belle Callender
 1916
U 1,171,267 February 8, 1916 Insulator for Electrically Charged Wires
Wall tube with metal gripping strip		 SMITH, George R.
 Wall Tube  
U 1,206,882 December 5, 1916 Insulating Tube
Wall tube with wedge projections		 MORENE, Carl T.
 Wall Tube  
 1929
U 1,706,987 March 26, 1929 Electric Wire Insulator
Bushing		 SCHAFFLER, Oscar
 Bushing  
 1934
U 1,977,957 October 23, 1934 Bus Bar and Bushing Connection
Connector to hold bus bar inside a bushing		 STEVENS, Leland S.
 Bushing Locke Insulator Corp.
U 1,978,649 October 30, 1934 Bus Bar and Bushing Connection
Connector to hold bus bar inside a bushing		 ROBERTS, Charles W.
 Bushing Locke Insulator Corp.

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