Pocket Watch Database
Patent Archive
#724888
Patent Information
Timer Valve
Andrew W. Knox
April 7, 1903
Patent #724888
| Patent Number: | 724888 |
| Description: | Timer Valve |
| Inventor(s): | Andrew W. Knox |
| Patent Date: | Apr 7, 1903 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
