Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11009102 | Range-change transmission device | Frank Steffens, Detlef Schnitzer, Ingo Pfannkuchen | 2021-05-18 |
| 11002351 | Range-change transmission device | Ingo Pfannkuchen, Detlef Schnitzer, Frank Steffens | 2021-05-11 |