Pocket Watch Database
Patent Archive
#3427798
Patent Information
Watch Calendar Mech
Donald J. Rogers
Horn John A. Van
February 18, 1969
Patent #3427798
| Manufacturer: | Hamilton |
| Patent Number: | 3427798 |
| Description: | Watch Calendar Mech |
| Inventor(s): |
Donald J. Rogers Horn John A. Van |
| Assignee: | Hamilton Watch Co |
| Patent Date: | Feb 18, 1969 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
