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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 = '439') AND (category.subclass = '793') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '439'; Subclass is '793';

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T / S Patent Date Description Patentee Category Assigned To
 1933
U 1,914,436 June 20, 1933 Insulator
Metal terminal built into a secondary rack insulator or wireholder that is used to secure the deadend of the drop wire with the terminal making the connection to the wire leading into the building eliminating the need for soldering or other poor connection (see 1,821,221; 1,821,222; 1,877,903)		 KYLE, William D.
 Bracket/secondary Rack Line Material Co.

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