Assignee
Inventors
- Olga Nyeki nee Kuprina (3 patents)
- Lajos Kisfaludy (21 patents)
- Katalin Szeberenyi nee Szalay (1 patents)
- Gabor Makara (2 patents)
- Bertalan Varga (1 patents)
- Egon Karpati (51 patents)
- Laszlo Szporny (111 patents)
US Patent 4672054 · Granted Jun 9, 1987