Assignee
Inventors
- Istvan Hermecz (50 patents)
- Zoltan Meszaros (21 patents)
- Unknown
- Lelle Vasvari (12 patents)
- Agnes Horvath (36 patents)
- Jozsef Knoll (29 patents)
- Gyula Sebestyen (19 patents)
- Agoston David (13 patents)
US Patent 4252807 · Granted Feb 24, 1981