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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 = '285') ORDER BY date ASC, patent, type

Total of 3 patents found where: Class is '403'; Subclass is '285';

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T / S Patent Date Description Patentee Category Assigned To
 1876
U 173,962 February 22, 1876 Improvement in Couplings for Tubing and Lightning Rods
Coupling made of a short hollow piece placed inside both ends of the rod and crimped down through the rod ends to secure the sections
JOHNSON, Isaac
Lightning Rod Coupling Reyburn, Hunter & Co.
U 173,963 February 22, 1876 Improvement in Lightning Rods
Lightning rod with solid supporting rod fitted inside and screwed into the rod coupling on each end
JOHNSON, Isaac
PRICE, David A.
Lightning Rod Reyburn, Hunter & Co.
 1892
U 470,514 March 8, 1892 Lightning Conductor
Hollow conductor rod with slip fittings
SIMPSON, Harvey
Lightning Rod  

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