Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876852 | Diesel internal combustion engine with an exhaust gas line system | Joerg Abthoff, Hans-Dieter Schuster, Hans-Joachim Langer, Rolf Gabler, Roland Schulte | 1989-10-31 |
| 4852349 | Arrangement for the removal of soot particles from the exhaust gas stream of a diesel internal combustion engine | Joerb Abthoff, Hans-Dieter Schuster, Hans-Joachim Langer, Rolf Gabler, Roland Schulte | 1989-08-01 |