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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 = '248') AND (category.subclass = '74.5') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '248'; Subclass is '74.5';

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T / S Patent Date Description Patentee Category Assigned To
 1925
U 1,527,346 February 24, 1925 Flexible Insulator
Wireholder with lag screw and metal bracket		 BRADY, William P.
 Wireholder Brady Electric & Mfg. Co.

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