Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4928460 | Self-propelling field chopping machine | Dirk Bruer, Franz Heidjann | 1990-05-29 |
| 4903470 | Self-propelling harvester thresher with two-part cutting mechanism | Heinrich Ostrup | 1990-02-27 |
| 4884993 | Harvester thresher | Franz Heidjann | 1989-12-05 |