Pocket Watch Database
Patent Archive
#804859
Patent Information
Pendulum Beat Adjust
William M. Johnson
November 21, 1905
Patent #804859
| Patent Number: | 804859 |
| Description: | Pendulum Beat Adjust |
| Inventor(s): | William M. Johnson |
| Patent Date: | Nov 21, 1905 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
