Patent information:
| Patent: | Utility 76,358 |
| Patented: | April 7, 1868 |
| Applied: | |
| Title: | Improvement in Electric Telegraphs |
| Description: | Rubber in porcelain or glass shell; glazed shell; sharp drip edge; ears |
| Category: | Rubber |
| Assigned to: |
Patentee Information:
| VARLEY, Cromwell F. | New York, NY |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 175 | INSULATORS; With conductor holding means; Insulator structure; Self-retaining; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 158R | INSULATORS; With insulator-supporting or attaching means; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 196 | INSULATORS; With terminal elements; Pin type; Plastic material adhered; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 210 | INSULATORS; Sectional, multi-part, composite, or coated; Pin socket type; |
Known specimens:
| None known |
Drawings:
Page 1 |