Pocket Watch Database
Patent Archive
#176309
Patent Information
Clock Pendulum Torsion
John W. Hile
April 18, 1876
Patent #176309
| Patent Number: | 176309 |
| Description: | Clock Pendulum Torsion |
| Inventor(s): | John W. Hile |
| Patent Date: | Apr 18, 1876 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
