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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 = '388') ORDER BY category DESC, date, patent, type

Total of 3 patents found where: Class is '403'; Subclass is '388';

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T / S Patent Date Description Patentee Category Assigned To
 Lightning Rod
U 61,741 February 5, 1867 Improvement in Lightning Rods
Lightning rod made from an iron rod with grooves and strips of copper slid into the grooves to make ribs
Lightning Rod  
U 124,264 March 5, 1872 Improvement in Lightning Rods
Lightning rod made by fastening two metal strips together by indentation, opening to form a star shape, and twising
GOODWIN, Frederick O.
Lightning Rod 1/2 to Frank Goodwin
U 1,173,418 February 29, 1916 Pole Cross-Arm
Metal pole crossarm with curved bracket that can be bolted to the pole
ETTE, Charles G.
Crossarm St. Louis Malleable Casting Co.

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