Pocket Watch Database
Patent Archive
#75463
Patent Information
Watch Changeable Escape
George Frederic Roskopf
March 10, 1868
Patent #75463
| Patent Number: | 75463 |
| Description: | Watch Changeable Escape |
| Inventor(s): | George Frederic Roskopf |
| Assignee: | Roskopf George Frederic |
| Patent Date: | Mar 10, 1868 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
