Pocket Watch Database
Patent Archive
#2867971
Patent Information
Watch Self Wind Mech
Ernst Stein
Hans Bertsch
January 13, 1959
Patent #2867971
| Patent Number: | 2867971 |
| Description: | Watch Self Wind Mech |
| Inventor(s): |
Ernst Stein Hans Bertsch |
| Assignee: | Friedrich Mauthe G M B H |
| Patent Date: | Jan 13, 1959 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
