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 = '30') AND (category.subclass = '117') ORDER BY specimen DESC, date, patent, type |
Total of 1 patents found where: Class is '30'; Subclass is '117';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1944 | ||||||
U | 2,341,309 | February 8, 1944 | Cutting Tool Cutting tool to remove clay from inside a bushing |
BETTINI, David Joseph |
Cutting Tool | Locke Insulator Corp. |
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