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 = '403') AND (category.subclass = '108') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '403'; Subclass is '108';
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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 |
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