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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 = 'D8') AND (category.subclass = '370') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is 'D8'; Subclass is '370';

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T / S Patent Date Description Patentee Category Assigned To
 1899
D 31,861 November 21, 1899 Design for a Ring Insulator
Ring wire holder (see ID 5165)		 COPELAND, Herschel P.
 Misc  

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