Pocket Watch Database
Patent Archive
#3505807
Patent Information
Watch Case Watertight
Ervin Piquerez
April 14, 1970
Patent #3505807
| Patent Number: | 3505807 |
| Description: | Watch Case Watertight |
| Inventor(s): | Ervin Piquerez |
| Patent Date: | Apr 14, 1970 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
