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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 = '56') AND (category.subclass = '41') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '56'; Subclass is '41';

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T / S Patent Date Description Patentee Category Assigned To
 1911
U 999,714 August 1, 1911 Machine for Picking Cotto
Machine for picking cotton		 GRAY, Thomas J.
 Cotton 3/4 to Charles A. Bookwalter, Thomas Taggart, and Crawford Fairbanks and 1/4 to Ralph G. Hemingray

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