Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4953793 | Bowl-and-roller mill | Helmut Grommes | 1990-09-04 |
| 4860962 | Bowl-mill crusher | Helmut Grommes | 1989-08-29 |
| 4674693 | Mill | Helmut Grommes | 1987-06-23 |
| 4501430 | Means of sealing off the inside of a pulverizer | Wilhelm Kuhl, Max Josefowitz | 1985-02-26 |