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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 = '118') AND (category.subclass = '425') ORDER BY date ASC, patent, type

Total of 3 patents found where: Class is '118'; Subclass is '425';

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T / S Patent Date Description Patentee Category Assigned To
 1940
U 2,209,006 July 23, 1940 Coating Apparatus
Machine to dip insulators in glaze.		 SMITH, William A.
 Manufacturing The Ohio Brass Co.
 1941
U 2,259,728 October 21, 1941 Apparatus for Making Hollow Glass Building Blocks
Machine for making glass block		 BRIDGES, Donald A.
 OI Owens-Illinois Glass Co.
 1947
U 2,422,537 June 17, 1947 Machine for Coating Insulators
Machine for applying RFI coating to insulators (see 2,333,557)		 FISCHER, Eugene H.
 Manufacturing Westinghouse Electric Corp.

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