Pocket Watch Database
Patent Archive
#172165
Patent Information
Watch Chronometer Escape
Mathias Petersen
January 11, 1876
Patent #172165
| Patent Number: | 172165 |
| Description: | Watch Chronometer Escape |
| Inventor(s): | Mathias Petersen |
| Patent Date: | Jan 11, 1876 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
