Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669346 | Internal combustion engine | Johannes Leweux, Hubert Schnupke | 1997-09-23 |
| 5662540 | Tensioning device for a chain of an internal combustion engine | Hubert Schnuepke | 1997-09-02 |