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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 = '428') AND (category.subclass = '433') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '428'; Subclass is '433';

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T / S Patent Date Description Patentee Category Assigned To
 1940
U 2,198,578 April 30, 1940 Double Glazing
Double pane window glass with aluminum seal		 HAZELTON, Benjamin F.
ZIMMERMAN, Willard P.
HOLMES, Minot K.
 OI Owens-Illinois Glass Co.

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