Patent information:
| Patent: | Utility 347,635 |
| Patented: | August 17, 1886 |
| Applied: | May 20, 1886 |
| Title: | Telegraph Insulator |
| Description: | CD 119, self-tying with fingers (should use instead of 316,812) |
| Category: | Insulator |
| Assigned to: | William Brookfield |
Patentee Information:
| O'BRIEN, John | New York, NY |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 174 | INSULATORS; With conductor holding means; Insulator structure; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 175 | INSULATORS; With conductor holding means; Insulator structure; Self-retaining; |
Known specimens:
| Number: | CD 119 |
Drawings:
Page 1 |