Pocket Watch Database
Patent Archive
#412796
Patent Information
Watch Calendar
Bernhardt Rosenburg
October 15, 1889
Patent #412796
| Patent Number: | 412796 |
| Description: | Watch Calendar |
| Inventor(s): | Bernhardt Rosenburg |
| Patent Date: | Oct 15, 1889 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
