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 = '218') AND (category.subclass = '1') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '218'; Subclass is '1';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1917 | ||||||
U | 1,222,952 | April 17, 1917 | Fuse Device Fuse holder with plug insert to hold the fuse. (see reissue 14,844) |
HERZ, Alfred |
Fuse Holder | 1/2 to Edmund O. Schweitzer |
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