Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4703897 | Method and apparatus for continuous pressure comminution of brittle grinding stock | Ludwig Gemmer, Raimund Zisselmar, Hans Kellerwessel | 1987-11-03 |
| 4187071 | Method for the treatment of finely grained material, particularly for the precalcining of cement | Kunibert Brachthauser, Hubert Ramesohl, Horst Herchenbach | 1980-02-05 |