Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338889 | Low-noise level internal combustion engine | Karl Kirchweger, Josef Greier | 1982-07-13 |
| 4313405 | Internal combustion engine | Othmar Skatsche, Gerhard Thien, Karl Kirchweger, Josef Greier, Hans List | 1982-02-02 |