Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315816 | High intensity magnetic field drum separator | Guenter Ries, Klaus-Peter Juengst, Franz Graf, Wolfgang Lehmann, Karl-Heinz Unkelbach +1 more | 1982-02-16 |
| 4272365 | Magnetic separator | Guenter Ries, Klaus-Peter Juengst, Franz Graf, Wolfgang Lehmann, Karl-Heinz Unkelbach +1 more | 1981-06-09 |