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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 = '428') AND (category.subclass = '599') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '428'; Subclass is '599';

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T / S Patent Date Description Patentee Category Assigned To
 1872
U 123,600 February 13, 1872 Improvement in Lightning Rods
Lightning rod made of soft iron flat on the back side and fluted on the front side then covered completely with sheet copper		 WELLS, Warren A.
HOUSE, George
 Lightning Rod  

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