Patent information:
| Patent: | Utility 1,521,433 |
| Patented: | December 30, 1924 |
| Applied: | April 17, 1923 |
| Title: | Indicating Insulator |
| Description: | Knob |
| Category: | Knob |
| Assigned to: |
Patentee Information:
| CHARLTON, Robert W. | Pineville, LA |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 157 | INSULATORS; Divided insulator; Aligned through aperture; |
Known specimens:
| Number: |  |
Drawings:
Page 1 |