Patent information:
| Patent: | Utility 76,960 |
| Patented: | April 21, 1868 |
| Applied: | |
| Title: | Improvement in Insulators for Telegraphs |
| Description: | Oil, wax or rubber saturated insulator to improve same (Brown p. 57) |
| Category: | Oil |
| Assigned to: | |
Patentee Information:
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 209 | INSULATORS; Sectional, multi-part, composite, or coated; |
Known specimens:
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