Pocket Watch Database
Patent Archive
#459914
Patent Information
Watch Spring Apparatus For Color
J. Logan
September 22, 1891
Patent #459914
| Patent Number: | 459914 |
| Description: | Watch Spring Apparatus For Color |
| Inventor(s): | J. Logan |
| Patent Date: | Sep 22, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
