Pocket Watch Database
Patent Archive
#332023
Patent Information
Watch Self Wind
Der Heydt Hermann Von
December 8, 1885
Patent #332023
| Patent Number: | 332023 |
| Description: | Watch Self Wind |
| Inventor(s): | Der Heydt Hermann Von |
| Patent Date: | Dec 8, 1885 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
