Assignee
No assignee recorded.
Inventors
- Istvan Grepaly (4 patents)
- Tibor Nagy (23 patents)
- Unknown
- Sandor Antal (8 patents)
- Elemer Lantos (7 patents)
- Unknown
- Ferenc Koszo (2 patents)
- Unknown
US Patent 6938932 · Granted Sep 6, 2005
No assignee recorded.