Pocket Watch Database
Patent Archive
#2072489
Patent Information
Spring Of Nickel Iron Alloy Elginium
Reinhard Straumann
March 2, 1937
Patent #2072489
| Manufacturer: | Elgin |
| Patent Number: | 2072489 |
| Description: | Spring Of Nickel Iron Alloy Elginium |
| Inventor(s): | Reinhard Straumann |
| Patent Date: | Mar 2, 1937 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
