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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 = 'DIG.3') ORDER BY date ASC, patent, type

Total of 5 patents found where: Class is '118'; Subclass is 'DIG.3';

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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.
 1943
U 2,329,114 September 7, 1943 Coating Ceramic Articles
Glazing a porcelain insulator by spraying a uniform coating on the surface
FISCHER, Eugene H.
Manufacturing Westinghouse Electric & Mfg. Co.
U 2,333,557 November 2, 1943 Coating of Insulators
Machine for applying a RFI coating on insulators (see 1,973,076) (see 1,997,686) (see 1,997,688) (see 2,422,537)
FISCHER, Eugene H.
RFI Westinghouse Electric & Mfg. Co.
 1944
U 2,342,307 February 22, 1944 Spraying Machine
Machine for spraying on RFI coatings
SMITH, William A.
RFI The Ohio Brass 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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