Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4395895 | Skew rolling mill for reducing solid and hollow cross-sections | Erich Bretschneider | 1983-08-02 |
| 4210011 | Rolling mill | Erich Bretschneider, Friedhelm Bohmer | 1980-07-01 |