Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644948 | Control valve with a drive operated by a pressure medium and a position controller | Thomas Karte, Heiko Kresse, Alexander Kleist | 1997-07-08 |
| 5631823 | Method of making a connection, particulary a screw connection | August Layer, Yinzenz Haerle, Egbert Schneider | 1997-05-20 |