Pocket Watch Database
Patent Archive
#498209
Patent Information
Watch Hair Spring Stud
Harrie E. Duncan
May 23, 1893
Patent #498209
| Manufacturer: | Waltham |
| Patent Number: | 498209 |
| Description: | Watch Hair Spring Stud |
| Inventor(s): | Harrie E. Duncan |
| Assignee: | American Waltham Watch Co |
| Patent Date: | May 23, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
