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 = '239') ORDER BY category ASC, date, patent, type |
Total of 3 patents found where: Class is '239';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
OI | ||||||
U | 2,362,433 | November 7, 1944 | Nozzle Nozzle for glass block dehydrating mechanism |
FERGUSON, John E. MCCREERY, Cecil W. |
OI | Owens-Illinois Glass Co. |
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. |
U | 2,995,184 | August 8, 1961 | Gas Burner Structures Gas Burner for welding glass blocks |
ZIMMERMAN, George |
OI | Owens-Illinois Glass Co. |
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