Patent information:
Patent: | Utility 135,334 |
Patented: | January 28, 1873 |
Applied: | |
Title: | Improvement in Telegraph Insulators |
Description: | Blocks (2) (glass) inside a metal box with suspended bolt to hold wire |
Category: | Block |
Assigned to: | |
Patentee Information:
Class and subclass information:
Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
Subclass: | 180 | INSULATORS; With terminal elements; Plural; Multi-part, sectional or composite insulator; Pin and opposed overlapping terminal; |
Known specimens:
|
Drawings:
Page 1 |
|