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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 = '292') AND (category.subclass = '256.6') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '292'; Subclass is '256.6';

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T / S Patent Date Description Patentee Category Assigned To
 1958
U 2,858,734 November 4, 1958 Skylight
Glass Block Skylight
BOYD, Robert A.
OI Owens-Illinois Glass Co.

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