Pocket Watch Database
Patent Archive
#2167797
Patent Information
Watch Keyless Wind
Henri Colomb
August 1, 1939
Patent #2167797
Patent Number: | 2167797 |
Description: | Watch Keyless Wind |
Inventor(s): | Henri Colomb |
Patent Date: | Aug 1, 1939 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |