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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 = '174') AND (category.subclass = '152GM') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '174'; Subclass is '152GM';

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T / S Patent Date Description Patentee Category Assigned To
 1940
U 2,201,049 May 14, 1940 Glass Fabrication Process and Mold
Glass bushing making process		 MOORE, Roy W.
 Manufacturing General Electric Co.
 1948
U 2,434,555 January 13, 1948 Electrical Insulator
Method of soldering metal fittings on porcelain bushings made of ""Prestite"".		 FISCHER, Eugene H.
HARNISH, John D.
RUSSELL, JR., Ralston
 Manufacturing Westhinghouse Electric Corp.

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