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 = '429') AND (category.subclass = '149') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '429'; Subclass is '149';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1919 | ||||||
U | 1,313,384 | August 19, 1919 | Battery Supporting Device CD 40; Battery for submarines using a special battery rest insulator |
HUTCHISON, Miller Reese NORTON, Charles W. |
Battery | Edison Storage Battery Co. |
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