Pocket Watch Database
Patent Archive
#234358
Patent Information
Indicate Time By Gas Pressure
Gustavus G. Wagner
November 9, 1880
Patent #234358
| Patent Number: | 234358 |
| Description: | Indicate Time By Gas Pressure |
| Inventor(s): | Gustavus G. Wagner |
| Patent Date: | Nov 9, 1880 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
