Pocket Watch Database
Patent Archive
#371139
Patent Information
Watch Escape Worm
William Hanson
October 4, 1887
Patent #371139
| Patent Number: | 371139 |
| Description: | Watch Escape Worm |
| Inventor(s): | William Hanson |
| Assignee: | Skilton James A |
| Patent Date: | Oct 4, 1887 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
