Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622321 | Mill classifier | Michael Keyssner, Reinhard Koschorek | 1997-04-22 |
| 5607111 | Method and apparatus for crushing material of different grain size | — | 1997-03-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622321 | Mill classifier | Michael Keyssner, Reinhard Koschorek | 1997-04-22 |
| 5607111 | Method and apparatus for crushing material of different grain size | — | 1997-03-04 |