Assignee
Inventors
- Jozsef Schwartz (1 patents)
- Marya Hornyak nee Hamori (1 patents)
- Janos Sagi (5 patents)
- Unknown
- Erzsebet Radvanyi nee Hegedus (3 patents)
- Zoltan Szigeti (1 patents)
- Edit Cseh (1 patents)
- Klara Bujtas nee Tolgyes (1 patents)
US Patent 4486222 · Granted Dec 4, 1984