Pocket Watch Database
Patent Archive
#2187863
Patent Information
Watch Crystal For Watertight
Ernest Morf
January 23, 1940
Patent #2187863
| Patent Number: | 2187863 |
| Description: | Watch Crystal For Watertight |
| Inventor(s): | Ernest Morf |
| Patent Date: | Jan 23, 1940 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
