Assignee
No assignee recorded.
Inventors
- Anders Bjork (28 patents)
- Knut G. Olsson (10 patents)
- Aina L. Abramo (11 patents)
- Erik G. Christensson (12 patents)
- Unknown
- Tomas Fex (14 patents)
US Patent 4935419 · Granted Jun 19, 1990
No assignee recorded.