Pocket Watch Database
Patent Archive
#3481137
Patent Information
Watch Electronic
Max Hetzel
Henri Haring
December 2, 1969
Patent #3481137
| Patent Number: | 3481137 |
| Description: | Watch Electronic |
| Inventor(s): |
Max Hetzel Henri Haring |
| Assignee: | Centre Electronique Horloger S |
| Patent Date: | Dec 2, 1969 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
