Pocket Watch Database
Patent Archive
#236818
Patent Information
Clock & Watch Escape
John B. Johnson
January 18, 1881
Patent #236818
| Patent Number: | 236818 |
| Description: | Clock & Watch Escape |
| Inventor(s): | John B. Johnson |
| Patent Date: | Jan 18, 1881 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
