Pocket Watch Database
Patent Archive
#168065
Patent Information
Watch Compound Balance Staff
John J. Thornton
September 21, 1875
Patent #168065
| Patent Number: | 168065 |
| Description: | Watch Compound Balance Staff |
| Inventor(s): | John J. Thornton |
| Assignee: | Ridgway Dan H |
| Patent Date: | Sep 21, 1875 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
