Pocket Watch Database
Patent Archive
#469914
Patent Information
Watch Balance Spring
Ole Olsen
March 1, 1892
Patent #469914
| Patent Number: | 469914 |
| Description: | Watch Balance Spring |
| Inventor(s): | Ole Olsen |
| Patent Date: | Mar 1, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
