Patent information:
| Patent: | Utility 2,935,553 |
| Patented: | May 3, 1960 |
| Applied: | August 13, 1958 |
| Title: | Electrical Knob Insulator |
| Description: | Nail-knob with center bushing to secure nail |
| Category: | Knob |
| Assigned to: | A. B. Chance Co. |
Patentee Information:
| SHOWMAN, Robert L. | Carey, OH |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 157 | INSULATORS; Divided insulator; Aligned through aperture; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 166R | INSULATORS; With insulator-supporting or attaching means; Support penetrating; Through aperture, penetrating element clamped; |
| Class: | 248 | SUPPORTS |
| Subclass: | 67.5 | PIPE OR CABLE; Brackets; Divided knob or cleat; |
| Class: | 248 | SUPPORTS |
| Subclass: | 71 | PIPE OR CABLE; Brackets; With support penetrating means; |
Known specimens:
| None known |
Drawings:
Page 1 |