Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698129 | Sliding gate valve for a metallurgical vessel | Werner Keller, Walter Toaldo, Hans Muller, Werner Plattner | 1997-12-16 |
| 5429342 | Slide gate nozzle including sequentially replaceable refractory sliding plates and refractory plate assembly employable therein | Werner Keller, Walter Toaldo, Werner Plattner | 1995-07-04 |
| 5114123 | Manipulator for manipulating a pouring pipe into position beneath a metallurgical vessel | — | 1992-05-19 |