Pocket Watch Database
Patent Archive
#1992273
Patent Information
Time Switch
Roscoe H. Wilmeth
James A. Keys
February 26, 1935
Patent #1992273
| Patent Number: | 1992273 |
| Description: | Time Switch |
| Inventor(s): |
Roscoe H. Wilmeth James A. Keys |
| Assignee: | Sangamo Electric Co |
| Patent Date: | Feb 26, 1935 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
