Pocket Watch Database
Patent Archive
#394507
Patent Information
Tool Main Spring Wind
Albert F. Robbins
December 11, 1888
Patent #394507
| Patent Number: | 394507 |
| Description: | Tool Main Spring Wind |
| Inventor(s): | Albert F. Robbins |
| Patent Date: | Dec 11, 1888 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
