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 = '264') AND (category.subclass = 'DIG.43') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '264'; Subclass is 'DIG.43';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1931 | ||||||
U | 1,816,023 | July 28, 1931 | Method of Manufacturing Insulators Method of assembling multipart insulators with wet cement and maintaining an ambient humidity and simulataneously cooling down. |
OSBORNE, David Henry |
Manufacturing | Electric Service Supplies Co. |
1935 | ||||||
U | 2,010,934 | August 13, 1935 | Cementing Process and Apparatus Apparatus to align the pin during the cementing process in a suspension insulator |
SMITH, William A. |
Manufacturing | The Ohio Brass Co. |
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