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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 = '341') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '403'; Subclass is '341';

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T / S Patent Date Description Patentee Category Assigned To
 1887
U 373,407 November 15, 1887 Interlocking Coupling for Lightning Rods
Coupling for lightning rods the interlocks with slots and projections on each end of the rod sections		 KRESS, George R.
 Lightning Rod Coupling  

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