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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 = '313') AND (category.subclass = '146') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '313'; Subclass is '146';

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T / S Patent Date Description Patentee Category Assigned To
 1880
R 9,484 November 30, 1880 Telegraph Insulator
Hook with metal case secured to crossarm (see 75,889)		 FINN, John L.
 Hook Amzi S. Dodd and Chinnock Electric Co.

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