Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819779 | Centrifugal clutch | Michael Wissmann, Horst Scholz | 1989-04-11 |
| 4813391 | Arrangement for injecting fuel for a two-stroke engine | Werner Geyer, Roland Schierling | 1989-03-21 |
| 4807573 | Fuel injection arrangement for a two-stroke engine | Roland Schierling, Werner Geyer, Michael Wissmann | 1989-02-28 |