Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6264022 | Cover belt conveyor for conveying bulk material | Burkhard Petack, Dirk Slowik | 2001-07-24 |
| 5890304 | Device for lifting, lowering and leveling booms of strip mining equipment | Burghard Petack, Jurgen Zeidler | 1999-04-06 |