Pocket Watch Database
Patent Archive
#1091561
Patent Information
Watch Spring Safety Attach
Knut S. Carlstrom
March 31, 1914
Patent #1091561
| Patent Number: | 1091561 |
| Description: | Watch Spring Safety Attach |
| Inventor(s): | Knut S. Carlstrom |
| Patent Date: | Mar 31, 1914 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
