Pocket Watch Database
Patent Archive
#638745
Patent Information
Clock Adjust Beat Of Pendulum
John H. Newell
December 12, 1899
Patent #638745
| Patent Number: | 638745 |
| Description: | Clock Adjust Beat Of Pendulum |
| Inventor(s): | John H. Newell |
| Patent Date: | Dec 12, 1899 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
