Patent information:
| Patent: | Utility 297,101 |
| Patented: | April 22, 1884 |
| Applied: | October 18, 1883 |
| Title: | Insulator for Telegraph Wires |
| Description: | Pin hole shaped to receive a keyed pin (advertisement eBay 4-2001) |
| Category: | Pin |
| Assigned to: |
Patentee Information:
| BALDWIN, Luther C. | Manchester, NH |
| THURSTON, John C. | Manchester, NH |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 194 | INSULATORS; With terminal elements; Pin type; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 202 | INSULATORS; With terminal elements; Pin type; Screw or bayonet type; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 206 | INSULATORS; With terminal elements; Pin type; Screw or bayonet type; Sockets; |
Known specimens:
| None known |
Drawings:
Page 1 |