Pocket Watch Database
Patent Archive
#728816
Patent Information
Watch Safety
Henry M. Willis
May 19, 1903
Patent #728816
| Patent Number: | 728816 |
| Description: | Watch Safety |
| Inventor(s): | Henry M. Willis |
| Patent Date: | May 19, 1903 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
