Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4497358 | Process for the manufacture of a steel body with a borehole protected against abrasion | Gerhard Gnadig, Friedrich Schneider | 1985-02-05 |
| 4215942 | Kneading disc for a screw extruder | Wilhelm Seufert, Gerhard Gnadig, Wolfgang Christen, Albert Grimminger | 1980-08-05 |