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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 = '294') AND (category.subclass = '86.4') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '294'; Subclass is '86.4';

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T / S Patent Date Description Patentee Category Assigned To
 1961
U 2,976,034 March 21, 1961 Chuck for Glass Block Machine
Chuck for Glass Block Machine
HIATT, SR., Earl
OU  

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