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 = '402') ORDER BY date ASC, patent, type |
Total of 3 patents found where: Class is '411'; Subclass is '402';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1882 | ||||||
U | 258,061 | May 16, 1882 | Screw for Fastening Telegraph Wires Metal screw with self-tying end for holding a telegraph wire. |
HAVILAND, Andrew J. |
Screw | |
1884 | ||||||
U | 301,446 | July 1, 1884 | Insulator for Electric Wires Hook with glazed covering (see 293,242 and 294,384) |
HALE, Albert W. |
Hook | |
1938 | ||||||
U | 2,139,332 | December 6, 1938 | Wire Holder Wireholder with lag screw |
PITTMAN, Ralph R. WALSH, Carroll H. |
Wireholder |
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