Patent information:
| Patent: | Utility 879,033 |
| Patented: | February 11, 1908 |
| Applied: | August 7, 1907 |
| Title: | Insulators for Electric Wires |
| Description: | Knob |
| Category: | Knob |
| Assigned to: |
Patentee Information:
| CALDWELL, John | Philadelphia, PA |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 173 | INSULATORS; With conductor holding means; Insulator embracing; Tie wires; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 174 | INSULATORS; With conductor holding means; Insulator structure; |
Known specimens:
| None known |
Drawings:
Page 1 |