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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.11') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '118'; Subclass is 'DIG.11';

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T / S Patent Date Description Patentee Category Assigned To
 1943
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.

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