Pocket Watch Database
Patent Archive
#3365876
Patent Information
Watch Calendar Mech
Michio Sawamura
January 30, 1968
Patent #3365876
| Patent Number: | 3365876 |
| Description: | Watch Calendar Mech |
| Inventor(s): | Michio Sawamura |
| Assignee: | Ricoh Watch Co Ltd |
| Patent Date: | Jan 30, 1968 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
