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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 = '694') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '248'; Subclass is '694';

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T / S Patent Date Description Patentee Category Assigned To
 1929
U 1,710,880 April 30, 1929 Insulator Stack
Pedestal type stackable insulators with metal flanges that can be easily adjusted		 LAPP, John S.
 Pedestal Lapp Insulator Co., Inc.

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