Assignee
Inventors
- Sandor Kekesi (1 patents)
- Piroska Tamasi (2 patents)
- Veronika Pal (3 patents)
- Sandor Jancso (8 patents)
- Ilona Kristof nee Szvitil (2 patents)
- Gyorgy Bacsa (6 patents)
- Katalin Kovacs nee Hadady (1 patents)
US Patent 4803069 · Granted Feb 7, 1989