Patent information:
| Patent: | Utility 1,869,397 |
| Patented: | August 2, 1932 |
| Applied: | March 16, 1929 |
| Title: | Insulator |
| Description: | Insulator with spiral or helical grooves to all rain to wash the surface better |
| Category: | Spiral |
| Assigned to: |
Patentee Information:
| STROUP, Charles L. | Oak Park, IL |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 174 | INSULATORS; With conductor holding means; Insulator structure; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 211 | INSULATORS; With moisture or dirt removing or shedding; |
Known specimens:
| Number: | U 819 |
| Number: | U 820 |
Drawings:
Page 1 |