Pocket Watch Database
Patent Archive
#2257404
Patent Information
Clock Auto Vacuum Wind
Kamil Urbanski
September 30, 1941
Patent #2257404
| Patent Number: | 2257404 |
| Description: | Clock Auto Vacuum Wind |
| Inventor(s): | Kamil Urbanski |
| Patent Date: | Sep 30, 1941 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
