Assignee
Inventors
- Olga Nyeki nee Kuprina (3 patents)
- Istvan Schon (9 patents)
- Lajos Kisfaludy (21 patents)
- Laszlo Denes (17 patents)
- Gyorgy Hajos (46 patents)
- Laszlo Szporny (111 patents)
- Bela Szende (5 patents)
- Karoly Lapis (5 patents)
US Patent 5041535 · Granted Aug 20, 1991