Patent information:
| Patent: | Utility 110,645 |
| Patented: | January 3, 1871 |
| Applied: | |
| Title: | Improvement in Glass Telegraph Insulators |
| Description: | CD 1040 threaded, tapered glass insulator to screw into crossarm or pole |
| Category: | Insulator |
| Assigned to: | |
Patentee Information:
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 164 | INSULATORS; With insulator-supporting or attaching means; Support penetrating; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 212 | INSULATORS; Surface configuration; |
Known specimens:
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Drawings:
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