Assignee
No assignee recorded.
Inventors
- Mats Heijkenskjold (8 patents)
- Olle Hedberg (2 patents)
- Vello Klaassen (2 patents)
- Sture Larsson (6 patents)
- Helmut Habermann (15 patents)
- Maurice Brunet (24 patents)
US Patent 4180946 · Granted Jan 1, 1980
No assignee recorded.