Pocket Watch Database
Patent Archive
#421622
Patent Information
Clock Tower Escape
Mathias Schwalbach
February 18, 1890
Patent #421622
| Patent Number: | 421622 |
| Description: | Clock Tower Escape |
| Inventor(s): | Mathias Schwalbach |
| Patent Date: | Feb 18, 1890 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
