Pocket Watch Database
Patent Archive
#417763
Patent Information
Watch Demagnetize
Francis J. Whilton
December 24, 1889
Patent #417763
| Patent Number: | 417763 |
| Description: | Watch Demagnetize |
| Inventor(s): | Francis J. Whilton |
| Patent Date: | Dec 24, 1889 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
