Pocket Watch Database
Patent Archive
#394919
Patent Information
Watch Regulator
Eugene Francois L. Grandjean
December 18, 1888
Patent #394919
| Patent Number: | 394919 |
| Category: | Regulators |
| Description: | Watch Regulator |
| Inventor(s): | Eugene Francois L. Grandjean |
| Patent Date: | Dec 18, 1888 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
