Pocket Watch Database
Patent Archive
#3389550
Patent Information
Watch Stem
Ervin Piquerez
June 25, 1968
Patent #3389550
| Patent Number: | 3389550 |
| Category: | Stem Mechanisms |
| Description: | Watch Stem |
| Inventor(s): | Ervin Piquerez |
| Patent Date: | Jun 25, 1968 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
