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 = '38') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '38';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1884 | ||||||
U | 308,778 | December 2, 1884 | Composition for Making Non-Conducting Handles for Sad-Irons, &c. Mixture of mica and glue to make solid non-conducting composition handles |
LEE, Charles Tennant |
Composition | |
1925 | ||||||
U | 1,538,238 | May 19, 1925 | Machine for Assembling Insulator Knobs Machine for assembling nail-knobs, inserting the nail and crimping it so the nail cannot be removed, thus holding the parts together. |
CARPENTER, Alexander |
Manufacturing | C. A. C. Automatic Machine Co. |
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