SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '72') AND (category.subclass = '379.2') ORDER BY last_name DESC, first_name, date, patent, type |
Total of 2 patents found where: Class is '72'; Subclass is '379.2';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
TAPLIN, Alvin | ||||||
U | 161,912 | April 13, 1875 | Improvement in Modes of Forming Sheet Metal Threaded Collars Oil lamp collar |
TAPLIN, Alvin |
HU | |
MANSON, Ralph H. | ||||||
U | 1,707,668 | April 2, 1929 | Insulator Support Secondary rack stamped out of one piece of sheet metal. |
MANSON, Ralph H. |
Bracket/secondary Rack | Hubbard and Co. |
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