|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 = '156') AND (category.subclass = '213') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Class is '156'; Subclass is '213';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||2,835,623||May 20, 1958||Method of Forming a Unitary Panel of Glass Blocks
Pre-assembled glass block windows and skylight panels
|VINCENT, Harold B.
|OI||Owens-Illinois Glass Co.|
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