Pocket Watch Database
Patent Archive
#2563112
Patent Information
Spring Wind Device
Charles Hill
Charles K. Johns
September 7, 1951
Patent #2563112
| Patent Number: | 2563112 |
| Description: | Spring Wind Device |
| Inventor(s): |
Charles Hill Charles K. Johns |
| Patent Date: | Sep 7, 1951 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
