Pocket Watch Database
Patent Archive
#337529
Patent Information
Watch Escape Lever
William B. Simpson
March 9, 1886
Patent #337529
| Patent Number: | 337529 |
| Description: | Watch Escape Lever |
| Inventor(s): | William B. Simpson |
| Patent Date: | Mar 9, 1886 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
