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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 = '320') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '118'; Subclass is '320';

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T / S Patent Date Description Patentee Category Assigned To
 1944
U 2,342,307 February 22, 1944 Spraying Machine
Machine for spraying on RFI coatings		 SMITH, William A.
 RFI The Ohio Brass Co.

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