Pocket Watch Database
Patent Archive
#3541780
Patent Information
Watch Wrist Calendar Mech
Benjamin Bolle
November 24, 1970
Patent #3541780
| Patent Number: | 3541780 |
| Description: | Watch Wrist Calendar Mech |
| Inventor(s): | Benjamin Bolle |
| Assignee: | Forster Bernhard |
| Patent Date: | Nov 24, 1970 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
