Assignee
Inventors
- Lajos Kisfaludy (21 patents)
- Olga Nyeki nee Kuprina (3 patents)
- Istvan Schon (9 patents)
- Laszlo Denes (17 patents)
- Julia A. Ember (2 patents)
- Gyorgy Hajos (46 patents)
- Laszlo Szporny (111 patents)
- Bela Szende (5 patents)
US Patent 4428938 · Granted Jan 31, 1984