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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 = '74.2') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '248'; Subclass is '74.2';

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T / S Patent Date Description Patentee Category Assigned To
 1915
U 1,125,064 January 19, 1915 Lightning Rod Fastener
Flat spring metal clip easily fastened to walls with screws and lightning rod snaps into the clip for easy installation		 CONNELL, James R.
 Lightning Rod Wisconsin Iron and Wire Works

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