Pocket Watch Database
Patent Archive
#2311230
Patent Information
Spring Wind Device
Charles Hill
February 16, 1943
Patent #2311230
| Patent Number: | 2311230 |
| Description: | Spring Wind Device |
| Inventor(s): | Charles Hill |
| Patent Date: | Feb 16, 1943 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
