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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 = '114') AND (category.subclass = '90') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '114'; Subclass is '90';

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T / S Patent Date Description Patentee Category Assigned To
 1854
U 11,217 July 4, 1854 Improvement in Lightning Rods for Vessels
Lightning rod system tied to the ship's masts and grounded to the copper sheathing on the hull		 FORBES, Robert B.
 Lightning Rod  

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