Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7171326 | Method for operating a sliding gate, and sliding gate | Pierre Gerber | 2007-01-30 |
| 5421559 | Drive mechanism for a stopper in a molten metal vessel | — | 1995-06-06 |
| 4708191 | Apparatus for indicating the level in metallurgical vessels by electromagnetic means | Franz-Rudolf Block, Wolfgang Theissen, Branislav Pesovic | 1987-11-24 |