Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805880 | Fluidized bed arrangement for the production of molten pig iron and steel pre-products | Rolf Hauk, Gero Papst, Michael Nagl, Werner Kepplinger, Leopold Seirlehner | 1989-02-21 |
| 4804319 | Process for compacting iron particles and subsequent breaking apart of the compacted iron band | — | 1989-02-14 |