Patent information:
| Patent: | Utility 1,218,181 |
| Patented: | March 6, 1917 |
| Applied: | February 24, 1915 |
| Title: | Insulator Knob |
| Description: | nail-knob made by Cook Pottery Co. known as the ""Wedge"". |
| Category: | Knob |
| Assigned to: | |
Patentee Information:
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 157 | INSULATORS; Divided insulator; Aligned through aperture; |
| Class: | 248 | SUPPORTS |
| Subclass: | 71 | PIPE OR CABLE; Brackets; With support penetrating means; |
Known specimens:
| Number: |  |
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Drawings:
Page 1 |
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