Pocket Watch Database
Patent Archive
#409739
Patent Information
Watch Case Spring
James D. Ewing
August 27, 1889
Patent #409739
| Manufacturer: | Keystone Watch Case Co. |
| Patent Number: | 409739 |
| Description: | Watch Case Spring |
| Inventor(s): | James D. Ewing |
| Assignee: | Keystone Watch Case Co |
| Patent Date: | Aug 27, 1889 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
