Pocket Watch Database
Patent Archive
#194744
Patent Information
Watch Escape
John Thomson
August 28, 1877
Patent #194744
| Patent Number: | 194744 |
| Description: | Watch Escape |
| Inventor(s): | John Thomson |
| Patent Date: | Aug 28, 1877 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
