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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 = '314') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '403'; Subclass is '314';

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T / S Patent Date Description Patentee Category Assigned To
 1877
U 189,298 April 10, 1877 Improvement in Couplings for Lightning Rods
Coupling for corrugated or fluted lightning rods of same shape fitted over the ends of the rods and riveted
BRADLEY, Lucien
Lightning Rod Coupling  
 1880
U 231,203 August 17, 1880 Lightning Rod Coupling
Screw coupling for ""star"" rods
WESTON, James H.
Lightning Rod Coupling  

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