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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 = '403') AND (category.subclass = '201') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '403'; Subclass is '201';

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T / S Patent Date Description Patentee Category Assigned To
 1921
U 1,385,638 July 26, 1921 Supporting Bracket
Steel pin with lag screw and spring for threads		 MILLER, Charles E.
 Pin  

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