Pocket Watch Database
Patent Archive
#2158723
Patent Information
Clock Control Pendulum
Helmut Junghans
May 16, 1939
Patent #2158723
| Patent Number: | 2158723 |
| Description: | Clock Control Pendulum |
| Inventor(s): | Helmut Junghans |
| Patent Date: | May 16, 1939 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
