Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646859 | Power supply arrangement | Olavi Vähämäki, Tero Talvitie, Kari Rautiainen | 2003-11-11 |
| 6058134 | Method for measuring the electric quantities of an AC electric-arc furnace | — | 2000-05-02 |