Assignee
Inventors
- Reijo Backstrom (27 patents)
- Erkki J. Honkanen (28 patents)
- Jarmo Pystynen (20 patents)
- Anne Luiro (9 patents)
- Paivi A. Aho (7 patents)
- Inge-Britt Y. Linden (15 patents)
- Erkki A. O. Nissinen (13 patents)
- Pentti Pohto (13 patents)
US Patent 5185370 · Granted Feb 9, 1993