Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5012861 | Machine housing | Kurt Zimmermann, Erwin Hinterdorfer | 1991-05-07 |
| 4565352 | Winch drive | Heinz Hasselmann, Harald Bitsch | 1986-01-21 |
| 4344515 | Claw clutch | Hugo Grote, Heinz Hasselmann, Karl Zacharias, Robert Kuelpmann, Paul W. Mueller | 1982-08-17 |