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 = '289.1') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '285'; Subclass is '289.1';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1877 | ||||||
U | 192,718 | July 3, 1877 | Improvement in Couplings for Lightning Rods Coupling for tubular lightning rods with male and female parts allowing the ends to be screwed together |
SMITH, Charles H. |
Lightning Rod Coupling |
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