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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 = '411') AND (category.subclass = '417') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '411'; Subclass is '417';

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T / S Patent Date Description Patentee Category Assigned To
 1885
U 321,646 July 7, 1885 Electric Wire Insulator
Pin with spars to fit in threaded pin hole		 SCHOONMAKER, Edward T.
 Pin 1/2 to John E. Smith

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