|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 = '16') AND (category.subclass = '2.2') ORDER BY type ASC, date, patent|
Total of 5 patents found where: Class is '16'; Subclass is '2.2';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||830,501||September 11, 1906||Protecting Bushing for Electric Circuit Wires
Bushing with screw threads
|GOEHST, John H.
||Bushing||Federal Electric Co.|
|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
|U||1,056,392||March 18, 1913||Insulator
|BARR, Carl A.
KOREN, Jerome H.
|U||1,171,267||February 8, 1916||Insulator for Electrically Charged Wires
Wall tube with metal gripping strip
|SMITH, George R.
|U||3,116,362||December 31, 1963||Insulating Bushing Assembly with Spring Retaining Means
Porcelain bushing with a retaining spring.
|RANKIN, Lawrence H.
||Bushing||The Hartford Faience Co.|
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