Pocket Watch Database
Patent Archive
#508760
Patent Information
Escape Pendulum
Sigmund Riefler
November 14, 1893
Patent #508760
| Patent Number: | 508760 |
| Description: | Escape Pendulum |
| Inventor(s): | Sigmund Riefler |
| Patent Date: | Nov 14, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
