Pocket Watch Database
Patent Archive
#450638
Patent Information
Watch Case Spring
James E. Searing
April 21, 1891
Patent #450638
| Patent Number: | 450638 |
| Description: | Watch Case Spring |
| Inventor(s): | James E. Searing |
| Patent Date: | Apr 21, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
