Pocket Watch Database
Patent Archive
#247657
Patent Information
Pendulum Self Adjust Crutch
Thomas Keyworth
September 27, 1881
Patent #247657
| Patent Number: | 247657 |
| Description: | Pendulum Self Adjust Crutch |
| Inventor(s): | Thomas Keyworth |
| Patent Date: | Sep 27, 1881 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
