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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 = '52') AND (category.subclass = '475.1') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '52'; Subclass is '475.1';

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T / S Patent Date Description Patentee Category Assigned To
 1961
U 2,996,845 August 22, 1961 Structural Panel and Building Wall Construction Utilizing Same
Panellized glass block wall construction		 CIPRIANI, Chester C.
STARK, Charles H.
 KI Kimble Glass Co.

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