Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5092660 | Cutter bit assemblies and arrangements for use with mining or tunnelling machines | Bernd Steinkuhl, Christoph Rassmann, Oswald Breuer | 1992-03-03 |
| 4819990 | Floor cutters for mineral winning ploughs | Oswald Breuer, Christoph Rassmann, Gunther-Dietmar Schoop | 1989-04-11 |
| 4715659 | Mineral mining installations | Christoph Rassmann, Gerhard Nickel, Bernd Steinkuhl, Gerhard Merten | 1987-12-29 |
| 4462637 | Control apparatus for inclination of longwall guide | Werner Rafael | 1984-07-31 |