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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 = '562') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '425'; Subclass is '562';

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T / S Patent Date Description Patentee Category Assigned To
 1928
U 1,693,429 November 27, 1928 Method of Casting
Manufacturing method to cast bushings with a hollow core		 AUSTIN, Arthur O.
 Manufacturing The Ohio Brass Co.

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