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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 = '366') AND (category.subclass = '229') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '366'; Subclass is '229';

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T / S Patent Date Description Patentee Category Assigned To
 1883
U 290,771 December 25, 1883 Glass Batch Mixer
Glass batch mixer		 HEMINGRAY, Ralph G.
 HI  

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