Pocket Watch Database
Patent Archive
#2184724
Patent Information
Time Switch And Control System
Thorvald A. Solberg
December 26, 1939
Patent #2184724
| Patent Number: | 2184724 |
| Description: | Time Switch And Control System |
| Inventor(s): | Thorvald A. Solberg |
| Patent Date: | Dec 26, 1939 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
