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 = '361') AND (category.subclass = '129') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '361'; Subclass is '129';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1908 | ||||||
U | 883,303 | March 31, 1908 | Security Lightning Arrester Lightning rod with multiple separate points arranged along the conductor on the edges of the roof |
DRAKE, William E. |
Lightning Rod Point |
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