Pocket Watch Database
Patent Archive
#2179411
Patent Information
Clock Work Pendulum
Helmut Junghans
November 7, 1939
Patent #2179411
| Patent Number: | 2179411 |
| Description: | Clock Work Pendulum |
| Inventor(s): | Helmut Junghans |
| Patent Date: | Nov 7, 1939 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
