Patent information:
| Patent: | Utility 897,669 |
| Patented: | September 1, 1908 |
| Applied: | January 3, 1906 |
| Title: | Insulator |
| Description: | Knob - self-tying |
| Category: | Knob |
| Assigned to: |
Patentee Information:
| SIEGWART, Frank J. | Pittsburg, PA |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 175 | INSULATORS; With conductor holding means; Insulator structure; Self-retaining; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 166R | INSULATORS; With insulator-supporting or attaching means; Support penetrating; Through aperture, penetrating element clamped; |
Known specimens:
| None known |
Drawings:
Page 1 |