Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5657723 | Drive unit with internal combustion engine and hydrodynamic retarder | Jurgen Friedrich, Hans Gebhardt, Heribert Moller, Alfred Neitz, Klaus Vogelsang | 1997-08-19 |
| 5657838 | Drive unit and method for operating a drive unit | Klaus Vogelsang | 1997-08-19 |
| 5613472 | Drive unit with internal combustion engine and hydrodynamic retarder | Jurgen Friedrich, Hans Gebhardt, Heribert Moller, Alfred Neitz, Klaus Vogelsang | 1997-03-25 |