Patent information:
| Patent: | Utility 1,158,105 |
| Patented: | October 26, 1915 |
| Applied: | February 9, 1914 |
| Title: | Insulating Tube |
| Description: | Wall tube with wedge projections (made by Illinois Electric Porcelain Co.) |
| Category: | Wall Tube |
| Assigned to: | 1/2 to Belle Callender |
Patentee Information:
| CALLENDER, Edwin F. | Galesburg, IL |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 152G | INSULATORS; Through wall or plate; Bushing type; Grommets or tubes; |
| Class: | 125 | STONE WORKING |
| Subclass: | 11.06 |
Known specimens:
| None known |
Drawings:
Page 1 |