| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Johan Stumpf | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
 | 1,045,630 | Nov. 26, 1912 | J. Stumpf | Unidirectional-flow steam-engine | |
 | 1,668,927 | May 08, 1928 | J. Stumpf | Noncondensing steam engine | |