Patent information:
| Patent: | Utility 201,615 |
| Patented: | March 26, 1878 |
| Applied: | August 22, 1877 |
| Title: | Improvement in Insulators for Telegraph Wires |
| Description: | Oil cup insulator |
| Category: | Oil |
| Assigned to: |
Patentee Information:
| JOHNSON, Walter C. | Charlton,, England |
| PHILLIPS, Samuel E. | Charlton,, England |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 30 | WITH FLUIDS OR VACUUM; Insulators; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 11BH | WITH FLUIDS OR VACUUM; With fluid-condition responsive and/or indicating means; Bushings; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 195 | INSULATORS; With terminal elements; Pin type; Multi-part insulators; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 209 | INSULATORS; Sectional, multi-part, composite, or coated; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 211 | INSULATORS; With moisture or dirt removing or shedding; |
Known specimens:
| Number: |  |
Drawings:
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