Pocket Watch Database
Patent Archive
#278550
Patent Information
Watch Key
Gardner L. Holt
May 29, 1883
Patent #278550
| Patent Number: | 278550 |
| Description: | Watch Key |
| Inventor(s): | Gardner L. Holt |
| Assignee: | Robertson William H |
| Patent Date: | May 29, 1883 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
