Pocket Watch Database
Patent Archive
#2784547
Patent Information
Watch Crown Waterproof
Joseph Waldman
March 12, 1957
Patent #2784547
| Patent Number: | 2784547 |
| Description: | Watch Crown Waterproof |
| Inventor(s): | Joseph Waldman |
| Patent Date: | Mar 12, 1957 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
