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 = '425') AND (category.subclass = '443') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '425'; Subclass is '443';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1908 | ||||||
U | 878,910 | February 11, 1908 | Die for Saggers and the Like Metal dies for making saggers. |
THOMAS, George W. |
Sagger | The R. Thomas & Sons Co. |
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