Pocket Watch Database
Patent Archive
#403999
Patent Information
Clock Gravity Escape
Ferdinand Gundorph
May 28, 1889
Patent #403999
| Patent Number: | 403999 |
| Description: | Clock Gravity Escape |
| Inventor(s): | Ferdinand Gundorph |
| Patent Date: | May 28, 1889 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
