Patent information:
| Patent: | Utility 184,509 |
| Patented: | November 21, 1876 |
| Applied: | March 6, 1876 |
| Title: | Improvement in Telegraph Insulators |
| Description: | Self-tying head with threaded end to screw into pole |
| Category: | Self-tying Miscellaneous |
| Assigned to: |
Patentee Information:
| CUNNINGHAM, Robert A. | Zanesville, OH |
| CROWELL, David F. | Zanesville, OH |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 175 | INSULATORS; With conductor holding means; Insulator structure; Self-retaining; |
| Class: | 24 | BUCKLES, BUTTONS, CLASPS, ETC. |
| Subclass: | 698.1 | SEPARABLE-FASTENER OR REQUIRED COMPONENT THEREOF; Including receiving member having cavity and mating member having insertable projection guided to interlock thereby; Hook-shaped projection member passing through cavity; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 164 | INSULATORS; With insulator-supporting or attaching means; Support penetrating; |
Known specimens:
| None known |
Drawings:
Page 1 |