Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4676826 | Method and apparatus for pneumatic feeding or additives into converters | Markku J. Jortikka, Eino H. Forss, Harry A. Heino, Erkki E. Putkonen, Toivo E. Julkunen +1 more | 1987-06-30 |
| 4491952 | Electric furnace dome | Matti E. Honkaniemi, Martti Jankkila, Aimo Nurminen, Matias Virta, Veikko Iisakka +3 more | 1985-01-01 |