Pocket Watch Database
Patent Archive
#493815
Patent Information
Watch Key
William F. Bingham
March 21, 1893
Patent #493815
| Patent Number: | 493815 |
| Description: | Watch Key |
| Inventor(s): | William F. Bingham |
| Patent Date: | Mar 21, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
