|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Tunnel Kiln') ORDER BY date ASC, 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|
|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.
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