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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 = '246') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '65'; Subclass is '246';

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T / S Patent Date Description Patentee Category Assigned To
 1883
U 270,526 January 9, 1883 Press for Molding Glass
Insulator press for molding glass or porcelain.
WERTS, William
Press  
 1898
U 596,652 January 4, 1898 Press for Making Insulators
Press for making insulators
BROOKFIELD, Henry M.
KRIBS, Seraphin
Press William Brookfield

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