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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 = '30') AND (category.subclass = '340') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '30'; Subclass is '340';

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T / S Patent Date Description Patentee Category Assigned To
 1890
U 433,284 July 29, 1890 Non-Conductive and Ornamental Handle for Vessels, $c.
Composition handle for tea pots, knives, door knobs, and electrical switches		 GOULD, William P.
 Composition  

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