Patent information:
| Patent: | Utility 71,564 |
| Patented: | November 26, 1867 |
| Applied: | |
| Title: | Improvement in Telegraph Insulators |
| Description: | Metal shell lined with glass or porcelain with wooden pin and paraffin cavity |
| Category: | Metal |
| Assigned to: | 2/3 to S. Porter & L. M. Monroe |
Patentee Information:
| WOOD, Merritt L. | Ithaca, NY |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 199 | INSULATORS; With terminal elements; Pin type; Expanded; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 165 | INSULATORS; With insulator-supporting or attaching means; Support penetrating; Penetrating element socketed in insulator; |
Known specimens:
| Number: |  |
Drawings:
Page 1 |