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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 = '285') AND (category.subclass = '394') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '285'; Subclass is '394';

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T / S Patent Date Description Patentee Category Assigned To
 1908
U 900,917 October 13, 1908 Insulator
Self-tying miscellaneous		 DOBSON, Grant
 Self-tying Miscellaneous 1/2 to Richard Ohloff

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