Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6495093 | Device for closing a tap hole of a metallurgical vessel | Helmut Kerschbaum, Ernst Hollwarth | 2002-12-17 |
| 6379608 | Method for closing and opening a tapping hole of a metallurgical vessel | Bernhard Enkner, Helmut Kerschbaum, Ernst Hollwarth, Christian Post | 2002-04-30 |