SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (category = 'Pin/mine') ORDER BY last_name ASC, first_name, date, patent, type |
Total of 1 patents found where: Category is 'Pin/mine';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
ETTE, Charles G. | ||||||
U | 1,163,132 | December 7, 1915 | Insulator Pin Insulator pin with two shanks that are driven into the mine ceiling or wall at right angles to each other in order to more securely hold the insulator. |
ETTE, Charles G. |
Pin/mine | St. Louis Malleable Casting Co. |
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