SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (category = 'Tunnel Kiln') ORDER BY last_name ASC, first_name, date, patent, type |
Total of 1 patents found where: Category is 'Tunnel Kiln';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
LAPP, Grover W. | ||||||
U | 2,975,499 | March 21, 1961 | Ceramic Tunnel Kiln More fuel efficient tunnel kiln for burning ceramic ware and produces a more uniform quality of porcelain. |
LAPP, Grover W. |
Tunnel Kiln |
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