Assignee
No assignee recorded.
Inventors
- Karoly Magyar (18 patents)
- Janos Varga (6 patents)
- Ferenc Simon (4 patents)
- Hedvig Szauder nee Lauko (2 patents)
- Pal Fekete (12 patents)
- Attila Romvary (2 patents)
- Janos Egri (9 patents)
- Unknown
US Patent 4871722 · Granted Oct 3, 1989
No assignee recorded.