Pocket Watch Database
Patent Archive
#2537886
Patent Information
Chronometer Calendar
Louis Frank
January 9, 1951
Patent #2537886
| Patent Number: | 2537886 |
| Description: | Chronometer Calendar |
| Inventor(s): | Louis Frank |
| Patent Date: | Jan 9, 1951 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
