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 = '285') AND (category.subclass = '404') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '285'; Subclass is '404';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1871 | ||||||
U | 113,530 | April 11, 1871 | Improvement in Lightning Rods Lightning rods connected with a tubular metal dowel |
KING, Lewis |
Lightning Rod Coupling | |
1880 | ||||||
R | 9,145 | April 13, 1880 | Lightning Rod Coupling Lightning rod coupling with one tapered end to fit snugly in the other end (see 214,545) |
BACON, Elmore C. |
Lightning Rod Coupling |
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