Pocket Watch Database
Patent Archive
#220763
Patent Information
Escape
John Jay Johnston
October 21, 1879
Patent #220763
| Patent Number: | 220763 |
| Description: | Escape |
| Inventor(s): | John Jay Johnston |
| Patent Date: | Oct 21, 1879 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
