Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698129 | Sliding gate valve for a metallurgical vessel | Walter Toaldo, Hans Muller, Werner Plattner, Anton Pfyl | 1997-12-16 |
| 5620627 | Discharge assembly and stator and rotor members thereof with two part construction | Rolf Waltenspuhl | 1997-04-15 |