Pocket Watch Database
Patent Archive
#212042
Patent Information
Safety Device For Main Spring
Stephen W. Morgan
February 4, 1879
Patent #212042
| Patent Number: | 212042 |
| Description: | Safety Device For Main Spring |
| Inventor(s): | Stephen W. Morgan |
| Patent Date: | Feb 4, 1879 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
