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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 = '156') AND (category.subclass = '294') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '156'; Subclass is '294';

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T / S Patent Date Description Patentee Category Assigned To
 1925
U 1,556,029 October 6, 1925 Method of Connecting Insulator Units
Suspension, card used to keep cement off top surface around cap		 REAGAN, Frank H.
 Suspension Locke Insulator Corp.

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