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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 = '321') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '403'; Subclass is '321';

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T / S Patent Date Description Patentee Category Assigned To
 1952
U Specimen known 2,609,418 September 2, 1952 Adjustably Mounted Insulator Assembly
Electric fence insulator with hexagon head used with metal mounting bracket (see patent 2,756,958)		 BINNS, Jack N.
DUGLE, Thomas E.
ALT, Alvin F.
 Electric Fence  

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