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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 = '269') AND (category.subclass = '6') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '269'; Subclass is '6';

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T / S Patent Date Description Patentee Category Assigned To
 1940
U 2,207,342 July 9, 1940 Glass Building Block Manufacture
Tool to align glass block halves		 EASTUS, Harold L.
 OI Owens-Illinois Glass Co.

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