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 = '408') AND (category.subclass = '229') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '408'; Subclass is '229';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1916 | ||||||
U | 1,191,595 | July 18, 1916 | Machine for Forming Porcelain Ware Machine to cut out and shape the Hewlett suspension disk |
HEWLETT, Edward M. |
Suspension | General Electric Co. |
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