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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 = '403') AND (category.subclass = '372') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '403'; Subclass is '372';

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T / S Patent Date Description Patentee Category Assigned To
 1916
U 1,171,267 February 8, 1916 Insulator for Electrically Charged Wires
Wall tube with metal gripping strip		 SMITH, George R.
 Wall Tube  
 1952
U 2,592,698 April 15, 1952 Insulator Supporting Pin and Cob
Steel pin with threaded cob made of cellulose acetate butyrate molded into threads (see reissue 23,885 on 10-5-1954)		 HUBBARD, David C.
 Pin A. B. Chance Co.

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