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 = '302') ORDER BY assigned_to ASC, date, patent, type |
Total of 2 patents found where: Class is '264'; Subclass is '302';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
Locke Insulator Corp. | ||||||
U | 2,044,332 | June 16, 1936 | Apparatus for Forming Ceramic Products Manufacturing method to produce well mixed clay slip for casting insulators |
ROWLAND, Davidge H. |
Manufacturing | Locke Insulator Corp. |
The Ohio Brass Co. | ||||||
U | 1,693,429 | November 27, 1928 | Method of Casting Manufacturing method to cast bushings with a hollow core |
AUSTIN, Arthur O. |
Manufacturing | The Ohio Brass Co. |
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