Pocket Watch Database
Patent Archive
#20888
Patent Information
Watch Escape
Jacob Muma
July 13, 1858
Patent #20888
| Patent Number: | 20888 |
| Description: | Watch Escape |
| Inventor(s): | Jacob Muma |
| Patent Date: | Jul 13, 1858 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
