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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 = '439') AND (category.subclass = '459') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '439'; Subclass is '459';

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T / S Patent Date Description Patentee Category Assigned To
 1938
U 2,111,505 March 15, 1938 Method of Making a Forged Clamp
Method of making the curved dead-end clamp described in patent 1,901,345.		 CARD, Charles S.
 Suspension The Brewer-Titchener Corp.

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