Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867270 | Exhaust gas muffler for a two-stroke engine | Michael Wissmann, Wilfried Muller, Helmut Zimmermann | 1989-09-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867270 | Exhaust gas muffler for a two-stroke engine | Michael Wissmann, Wilfried Muller, Helmut Zimmermann | 1989-09-19 |