Pocket Watch Database
Patent Archive
#227504
Patent Information
Watch Case Spring
William Drysdale
May 11, 1880
Patent #227504
| Patent Number: | 227504 |
| Description: | Watch Case Spring |
| Inventor(s): | William Drysdale |
| Patent Date: | May 11, 1880 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
