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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 = '363') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '403'; Subclass is '363';

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T / S Patent Date Description Patentee Category Assigned To
 1873
U 143,862 October 21, 1873 Improvement in Lightning Rods
Lightning rod with twisted flanges that is split on the ends where it fits snugly with the split in the adjoining rod with said joint secured with metal pins
WHITE, Joseph J.
Lightning Rod  
 1883
U 278,028 May 22, 1883 Lightning Rod
Method of connecting flanged or ribbed lightning rods
LOBDELL, Augustus C.
Lightning Rod Coupling  

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