Patent information:
| Patent: | Utility 276,839 |
| Patented: | May 1, 1883 |
| Applied: | May 2, 1882 |
| Title: | Insulator for Telegraph Wires |
| Description: | CD 110.5 & CD 110.6 spiral groove crown & clamp for line wire |
| Category: | Insulator |
| Assigned to: |
Patentee Information:
| LEWIS, Joseph Slater | Birkenhead, Chester, England |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 172 | INSULATORS; With conductor holding means; Insulator embracing; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 174 | INSULATORS; With conductor holding means; Insulator structure; |
Known specimens:
| Number: | CD 110.5 |
| Number: | CD 110.6 |
Drawings:
Page 1 |