Pocket Watch Database
Patent Archive
#621664
Patent Information
Watch Stem Wind & Set
Edward Francis Heffernan
March 21, 1899
Patent #621664
| Patent Number: | 621664 |
| Category: | Stem Mechanisms |
| Description: | Watch Stem Wind & Set |
| Inventor(s): | Edward Francis Heffernan |
| Patent Date: | Mar 21, 1899 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
