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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 = '174') AND (category.subclass = '110AR') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '174'; Subclass is '110AR';

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T / S Patent Date Description Patentee Category Assigned To
U 243,782 July 5, 1881 Compound Substance for Electric Insulators
Composition for hard rubber for insulators
MAYALL, Thomas J.
U 2,146,596 February 7, 1939 Rubber Insulating Compound and Method of Making the Same
Rubber compound for electrical conductors
SAVAGE, Manuel H.
SPARGO, Francis C.
Rubber General Electric Co.

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