Patent information:
Patent: | Utility 1,163,132 |
Patented: | December 7, 1915 |
Applied: | March 1, 1915 |
Title: | Insulator Pin |
Description: | 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. |
Category: | Pin/mine |
Assigned to: | St. Louis Malleable Casting Co. |
Patentee Information:
Class and subclass information:
Class: | 248 | SUPPORTS |
Subclass: | 547 | WITH MEANS TO FACILITATE INSTALLATION, REPAIR, OR TRANSPORTATION, OR BROKEN PARTS RETAINER; For support cutting or piercing; Nail guide or holder; |
Class: | 248 | SUPPORTS |
Subclass: | 217.2 | BRACKETS; Specially mounted or attached; Including support piercing or cutting means; Plural means engaging in different directions; |
Known specimens:
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Drawings:
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