Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9624075 | Drum hoist with a driven main shaft | — | 2017-04-18 |
| 6460657 | Conveyor apparatus for open-cut mining | Werner Isenburg, Paul-Gerhard Lütticke, Folker Rollmann, Wolfgang Schubert, Klaus Simmich | 2002-10-08 |