Pocket Watch Database
Patent Archive
#2958180
Patent Information
Timepiece Electric Constant Force Escape
Frederic Marti
Georges Braunschweig
November 1, 1960
Patent #2958180
| Patent Number: | 2958180 |
| Description: | Timepiece Electric Constant Force Escape |
| Inventor(s): |
Frederic Marti Georges Braunschweig |
| Patent Date: | Nov 1, 1960 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
