| 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 date ASC, patent, type |
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 |
| 1906 | ||||||
| U | 830,501 | September 11, 1906 | Protecting Bushing for Electric Circuit Wires Bushing with screw threads |
GOEHST, John H. |
Bushing | Federal Electric Co. |
| 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 | |
| 1913 | ||||||
| U | 1,056,392 | March 18, 1913 | Insulator Bushing |
BARR, Carl A. KOREN, Jerome H. |
Bushing | |
| 1916 | ||||||
| U | 1,171,267 | February 8, 1916 | Insulator for Electrically Charged Wires Wall tube with metal gripping strip |
SMITH, George R. |
Wall Tube | |
| 1963 | ||||||
| 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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