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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 = '230.2') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '248'; Subclass is '230.2';

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T / S Patent Date Description Patentee Category Assigned To
 1949
U 2,468,907 May 3, 1949 Electric Fence Post
Electric fence composed of a rod and an easily adjustable insulator to hold the conductor		 WILSON, Robert M.
PHILLIPS, Goddie F.
 Fence  

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