Pocket Watch Database
Patent Archive
#753584
Patent Information
Watch Main Spring
Ernest F. O. Klein
March 1, 1904
Patent #753584
| Patent Number: | 753584 |
| Description: | Watch Main Spring |
| Inventor(s): | Ernest F. O. Klein |
| Patent Date: | Mar 1, 1904 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
