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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 = '135') ORDER BY patent ASC, type

Total of 1 patents found where: Class is '135';

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T / S Patent Date Description Patentee Category Assigned To
 1892
U 470,514 March 8, 1892 Lightning Conductor
Hollow conductor rod with slip fittings
SIMPSON, Harvey
Lightning Rod  

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