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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 = '163.1') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '248'; Subclass is '163.1';

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T / S Patent Date Description Patentee Category Assigned To
 1883
U 271,733 February 6, 1883 Tripod Standard for Lightning Rods
Tripod stand for lightning rod with brackets to hold the rod		 PATEE, Theodorus H.
RIDGE, Thomas D.
 Lightning Rod Theodorus H. Patee

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