Pocket Watch Database
Patent Archive
#208620
Patent Information
Automatic Pendulum Regulator
Francisco J. Martins
October 1, 1878
Patent #208620
| Patent Number: | 208620 |
| Description: | Automatic Pendulum Regulator |
| Inventor(s): | Francisco J. Martins |
| Patent Date: | Oct 1, 1878 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
