Pocket Watch Database
Patent Archive
#81907
Patent Information
Watch Regulate Adjust
Frank G. Johnson
September 8, 1868
Patent #81907
| Patent Number: | 81907 |
| Description: | Watch Regulate Adjust |
| Inventor(s): | Frank G. Johnson |
| Patent Date: | Sep 8, 1868 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
