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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 = '425') AND (category.subclass = '344') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '425'; Subclass is '344';

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T / S Patent Date Description Patentee Category Assigned To
 1941
U 2,234,604 March 11, 1941 Molding Apparatuse
Automatic press for molding nail knobs		 PECK, Lee H.
 Press Porcelain Products, Inc.

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