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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 = '359') AND (category.subclass = '594') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '359'; Subclass is '594';

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T / S Patent Date Description Patentee Category Assigned To
 1958
U 2,844,998 July 29, 1958 Glass Building Block Having Light Directing Properties
Glass block that directs light		 VINCENT, Harvard B.
 OI Owens-Illinois Glass Co.
 1963
U 3,113,728 December 10, 1963 Artificial Light and Daylighting Structure
Artificical Light that looks like a glass block		 BOYD, Robert A.
 OI Owens-Illinois Glass Co.

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