Pocket Watch Database
Patent Archive
#385908
Patent Information
Watch Main Spring
Duane H. Church
July 10, 1888
Patent #385908
| Manufacturer: | Waltham |
| Patent Number: | 385908 |
| Description: | Watch Main Spring |
| Inventor(s): | Duane H. Church |
| Patent Date: | Jul 10, 1888 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
