Pocket Watch Database
Patent Archive
#3449904
Patent Information
Watch Electro Mechanical
Heinz Waldburger
Rolf Ludin
June 17, 1969
Patent #3449904
| Patent Number: | 3449904 |
| Description: | Watch Electro Mechanical |
| Inventor(s): |
Heinz Waldburger Rolf Ludin |
| Assignee: | Centre Electronique Horloger S |
| Patent Date: | Jun 17, 1969 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
