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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 = '65') AND (category.subclass = '306') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '65'; Subclass is '306';

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T / S Patent Date Description Patentee Category Assigned To
 1906
U 835,236 November 6, 1906 Press for Making Insulators or Similar Articles
Press for making insulators		 BROOKFIELD, Henry M.
 Press  
U 835,245 November 6, 1906 Press for Making Glass Insulators or Similar Glass Articles
Press for making insulators		 KRIBS, Seraphin
 Press Henry M. Brookfield

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