Pocket Watch Database
Patent Archive
#1222869
Patent Information
Watch Read By Touch
Francis R. Hoyt
April 10, 1917
Patent #1222869
| Patent Number: | 1222869 |
| Description: | Watch Read By Touch |
| Inventor(s): | Francis R. Hoyt |
| Assignee: | Simms Magneto Co |
| Patent Date: | Apr 10, 1917 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
