Pocket Watch Database
Patent Archive
#62775
Patent Information
Tool Watch Main Spring Strength
N. A. Plympton
March 12, 1867
Patent #62775
| Patent Number: | 62775 |
| Description: | Tool Watch Main Spring Strength |
| Inventor(s): | N. A. Plympton |
| Patent Date: | Mar 12, 1867 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
