Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7882633 | Method for machining shaft bearing seats | J. Hans Naumann, Jurgen Haberkorn, Matthias Hertel | 2011-02-08 |
| 5927167 | Apparatus for truing wheelsets | Hans J. Naumann, Reinhard Robotta, Gunter Schroter | 1999-07-27 |