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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 = '256') AND (category.subclass = '72') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '256'; Subclass is '72';

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T / S Patent Date Description Patentee Category Assigned To
 1893
U 491,208 February 7, 1893 Insulator Clip
Tie wire clip		 EDMUNDS, William H.
 Tie Wire  

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