Pocket Watch Database
Patent Archive
#331774
Patent Information
Main Spring Safety Device
Lucien C. Davis
December 8, 1885
Patent #331774
| Patent Number: | 331774 |
| Description: | Main Spring Safety Device |
| Inventor(s): | Lucien C. Davis |
| Patent Date: | Dec 8, 1885 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
