|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 = '52') AND (category.subclass = '726.1') ORDER BY date ASC, patent, type|
Total of 2 patents found where: Class is '52'; Subclass is '726.1';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|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
PRICE, David A.
|Lightning Rod||Reyburn, Hunter & Co.|
|U||1,047,176||December 17, 1912||Cross Arm
Crossarm stamped out of sheet metal and easy to install
|CRABTREE, Lawrence L.
RIPLEY, T. Charley
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