| 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 = '411') AND (category.subclass = '508') ORDER BY date ASC, patent, type |
Total of 3 patents found where: Class is '411'; Subclass is '508';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1901 | ||||||
| U | 684,909 | October 22, 1901 | Insulating Bushing Bushing |
COLE, John A. |
Bushing | |
| 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 | |
| 1912 | ||||||
| U | 1,026,711 | May 21, 1912 | Sheet Metal Insulator Pin Pin, metal composed of three flat strips |
SHOVER, Barton R. |
Pin | |
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