Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7451963 | Leading sheave mine winding engine with improved cooling air conduction | Norbert Bauer, Rolf Heep, Frank Kristek | 2008-11-18 |
| 6702043 | Drilling machine with arc-like drill pipe holder | Hubert Koch, Karl-Robert Rohkamm, Josef Maus, Gerald Labedski, Dieter Gude | 2004-03-09 |