Patent information:
| Patent: | Utility 1,311,483 |
| Patented: | July 29, 1919 |
| Applied: | November 28, 1917 |
| Title: | Insulator |
| Description: | nail-knob, cap has radial ridges flush with rim of cap and base has ribbed grooves. |
| Category: | Knob |
| Assigned to: | Wheeling Tile Co. |
Patentee Information:
| AMOS, Frank M. | Wheeling, WV |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 157 | INSULATORS; Divided insulator; Aligned through aperture; |
Known specimens:
| Number: |  |
Drawings:
Page 1 |