Assignee
Inventors
- Istvan Polgar (2 patents)
- Jozsef Foldesi (2 patents)
- Janos Kiss (7 patents)
- Piroska Major nee Forstner (1 patents)
- Karoly Molnar (3 patents)
- Andras Sugar (3 patents)
- Tamas Szen (3 patents)
- Katalin Balogh nee Nemes (1 patents)
US Patent 5097031 · Granted Mar 17, 1992