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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 = '215') AND (category.subclass = '302') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '215'; Subclass is '302';

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T / S Patent Date Description Patentee Category Assigned To
 1863
U 38,820 June 9, 1863 Improvement in Caps for Fruit Jars
Wrench lug sheetmetal fruit jar cap		 GRAY, Ralph
HEMINGRAY, Robert
 HI  

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