Pocket Watch Database
Patent Archive
#2479348
Patent Information
Watch Crown Waterproof
Charles B. Greenberg
August 16, 1949
Patent #2479348
| Patent Number: | 2479348 |
| Description: | Watch Crown Waterproof |
| Inventor(s): | Charles B. Greenberg |
| Patent Date: | Aug 16, 1949 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
