Pocket Watch Database
Patent Archive
#293691
Patent Information
Watch Self Wind
Der Heydt Hermann Von
February 19, 1884
Patent #293691
| Patent Number: | 293691 |
| Description: | Watch Self Wind |
| Inventor(s): | Der Heydt Hermann Von |
| Patent Date: | Feb 19, 1884 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
