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 |
1881 | ||||||
U | 243,782 | July 5, 1881 | Compound Substance for Electric Insulators Composition for hard rubber for insulators |
MAYALL, Thomas J. |
Composition | |
1939 | ||||||
U | 2,146,596 | February 7, 1939 | Rubber Insulating Compound and Method of Making the Same Rubber compound for electrical conductors |
SCHWARTZ, Emil W. SAVAGE, Manuel H. SPARGO, Francis C. |
Rubber | General Electric Co. |
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