Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6692090 | Method of maintaining the effect of the engine brake | Harald Heyn, Martin Kümmel | 2004-02-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6692090 | Method of maintaining the effect of the engine brake | Harald Heyn, Martin Kümmel | 2004-02-17 |