Pocket Watch Database
Patent Archive
#831561
Patent Information
Watch Anti Magnetic
Henry Montgomery
September 25, 1906
Patent #831561
| Patent Number: | 831561 |
| Description: | Watch Anti Magnetic |
| Inventor(s): | Henry Montgomery |
| Patent Date: | Sep 25, 1906 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
