Pocket Watch Database
Patent Archive
#414802
Patent Information
Watch Case Spring
James D. Ewing
November 12, 1889
Patent #414802
| Manufacturer: | Keystone Watch Case Co. |
| Patent Number: | 414802 |
| Description: | Watch Case Spring |
| Inventor(s): | James D. Ewing |
| Assignee: | Keystone Watch Case Co |
| Patent Date: | Nov 12, 1889 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
