Pocket Watch Database
Patent Archive
#1731712
Patent Information
Watch Crystal
Pridham B. Davis
October 15, 1929
Patent #1731712
| Patent Number: | 1731712 |
| Description: | Watch Crystal |
| Inventor(s): | Pridham B. Davis |
| Patent Date: | Oct 15, 1929 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
