Pocket Watch Database
Patent Archive
#443881
Patent Information
Tool Main Spring Wind
Alden R. Vaughan
December 30, 1890
Patent #443881
| Patent Number: | 443881 |
| Description: | Tool Main Spring Wind |
| Inventor(s): | Alden R. Vaughan |
| Patent Date: | Dec 30, 1890 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
