Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6694942 | Four-stroke engine with rotary valve control | Rainer Massmann, Wolf Burger | 2004-02-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6694942 | Four-stroke engine with rotary valve control | Rainer Massmann, Wolf Burger | 2004-02-24 |