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 = '521') AND (category.subclass = '122') ORDER BY description ASC, date, patent, type |
Total of 1 patents found where: Class is '521'; Subclass is '122';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1950 | ||||||
U | 2,514,141 | July 4, 1950 | Polyester Resin Adhesive Compositions Cement composed of polyester resin and sand for attaching metal parts to suspension and other insulators |
PHILLIPS, Dorothea S. |
Cement | American Cyanamid Co. |
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