Patent information:
| Patent: | Utility 1,232,354 |
| Patented: | July 3, 1917 |
| Applied: | November 28, 1916 |
| Title: | Insulator |
| Description: | nail-knob |
| Category: | Knob |
| Assigned to: | Brunt Tile & Porcelain Co. |
Patentee Information:
| MAIR, John E. | Pittsburg, PA |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 157 | INSULATORS; Divided insulator; Aligned through aperture; |
Known specimens:
| Number: |  |
Drawings:
Page 1 |