| 5522557 |
Roll mill |
Helmut Lucke, Reinhold Giesemann, Johann Knecht, Gerhard Blatton |
1996-06-04 |
| 4808108 |
Method and apparatus for the heat treatment of fine-grained material |
Manfred Durr, Jurgen Wurr, Karl Krutzner, Wolfgang Rother, Karl Menzel +4 more |
1989-02-28 |
| 4792393 |
Spiral air sifter having air regulation |
Gotthardt Blasczyk, Hubert Eickholt, Otto Heinemann, Norbert Bredenholler, Ludger Kimmeyer +2 more |
1988-12-20 |
| 4720262 |
Apparatus for the heat treatment of fine material |
Manfred Durr, Karl Krutzner, Heinz-Werner Thiemeyer, Jurgen Wurr, Wolfgang Rother |
1988-01-19 |
| 4457082 |
Heat exchanger |
Wilfried Kreft, Wolfgang Rother, Karl Menzel, Herbert W. Schmelter, Heinrich Weber |
1984-07-03 |
| 4352660 |
Method and apparatus for burning fine-grain material |
Janos Steiner, Kalman Wenzly, Jozsef Toth, Wolf Goldmann, Gerhard Butschko |
1982-10-05 |
| 4300879 |
Process for the heat-treatment of fine-grained material |
Wolf Goldmann, Dieter Michaelsen, Dieter Dreyer, Dietmar Holsiepe, Klaus Bauer +2 more |
1981-11-17 |