Pocket Watch Database
Patent Archive
#1251765
Patent Information
Device For Bend Hair Spring
Wallace B. England
Leon Fonnebeck
January 1, 1918
Patent #1251765
| Patent Number: | 1251765 |
| Description: | Device For Bend Hair Spring |
| Inventor(s): |
Wallace B. England Leon Fonnebeck |
| Patent Date: | Jan 1, 1918 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
