Pocket Watch Database
Patent Archive
#932257
Patent Information
Tool Main Spring Wind
Orville S. Evans
August 24, 1909
Patent #932257
| Patent Number: | 932257 |
| Description: | Tool Main Spring Wind |
| Inventor(s): | Orville S. Evans |
| Patent Date: | Aug 24, 1909 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
