Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4365510 | Method and device for measuring the height of at least one separation layer in the material bed of a density sorting machine | Wolf-Diethard Grunberg, Karl-Heinz Unkelbach | 1982-12-28 |