Patent information:
| Patent: | Utility 41,157 |
| Patented: | January 5, 1864 |
| Applied: | |
| Title: | Improvement in Insulators for Telegraph Wires |
| Description: | Earthenware (terra-cotta) insulator to hold 3 to 7 wires |
| Category: | Earthenware |
| Assigned to: |
Patentee Information:
| HOLLAND, James | Conshohocken, PA |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 167 | INSULATORS; With conductor receiving aperture or bushing type; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 174 | INSULATORS; With conductor holding means; Insulator structure; |
| Class: | 264 | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| Subclass: | DIG54 | Processes in making insulators; |
Known specimens:
| None known |
Drawings:
Page 1 |