Pocket Watch Database
Patent Archive
#2426404
Patent Information
Tool For Raising Overcoil On Hair Spring
Carl Martenson
August 26, 1947
Patent #2426404
| Patent Number: | 2426404 |
| Description: | Tool For Raising Overcoil On Hair Spring |
| Inventor(s): | Carl Martenson |
| Patent Date: | Aug 26, 1947 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
