Pocket Watch Database
Patent Archive
#3500632
Patent Information
Watch Bearing
Fritz Marti
March 17, 1970
Patent #3500632
| Patent Number: | 3500632 |
| Description: | Watch Bearing |
| Inventor(s): | Fritz Marti |
| Assignee: | Portescap Le Porte-echappement |
| Patent Date: | Mar 17, 1970 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
