Pocket Watch Database
Patent Archive
#3531929
Patent Information
Watch Calendar Set
Benjamin Bolle
October 6, 1970
Patent #3531929
| Patent Number: | 3531929 |
| Description: | Watch Calendar Set |
| Inventor(s): | Benjamin Bolle |
| Assignee: | Forster Bernhard |
| Patent Date: | Oct 6, 1970 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
