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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 = '379.3') ORDER BY patent DESC, type

Total of 3 patents found where: Class is '403'; Subclass is '379.3';

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T / S Patent Date Description Patentee Category Assigned To
U 214,545 April 22, 1879 Improvement in Lightning Rod Couplings
Lightning rod coupling with one tapered end to fit snugly in the other end (see reissue 9,145)
BACON, Elmore C.
Lightning Rod Coupling  
U 113,530 April 11, 1871 Improvement in Lightning Rods
Lightning rods connected with a tubular metal dowel
KING, Lewis
Lightning Rod Coupling  
U 90,578 May 25, 1869 Improvement in Lightning Rod Couplings
Coupling for lightning rods where the ends can be screwed together (see reissue 8,304)
REYBURN, William S.
HUNTER, Edmund A. W.
Lightning Rod Coupling  

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