Pocket Watch Database
Patent Archive
#291803
Patent Information
Clock Remove Main Spring
David Switzer
Charles Switzer
January 8, 1884
Patent #291803
| Patent Number: | 291803 |
| Description: | Clock Remove Main Spring |
| Inventor(s): |
David Switzer Charles Switzer |
| Patent Date: | Jan 8, 1884 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
