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 = '336') AND (category.subclass = '65') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '336'; Subclass is '65';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1915 | ||||||
U | 1,132,281 | March 16, 1915 | Reactive Coil Odd arrangement for a choke coil around Hewlett fish-tail strain insulators. |
MOODY, Walter S. |
Coil | General Electric Co. |
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