Pocket Watch Database
Patent Archive
#120385
Patent Information
Pendulum Compensate
Henry B. James
October 31, 1871
Patent #120385
| Patent Number: | 120385 |
| Description: | Pendulum Compensate |
| Inventor(s): | Henry B. James |
| Patent Date: | Oct 31, 1871 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
