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 = '431') AND (category.subclass = '185') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '431'; Subclass is '185';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1952 | ||||||
U | 2,596,341 | May 13, 1952 | Burner Block and Burner Glass furnace burner and refractory burner block |
MCCREERY, Cecil W. HATFIELD, Milton W. |
OI | Owens-Illinois Glass Co. |
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