|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Pin/mine') ORDER BY date ASC, 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|
|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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