Assignee
No assignee recorded.
Inventors
- Evzen Kasafirek (7 patents)
- Miroslav Rybak (7 patents)
- Ivan Krejci (4 patents)
- Antonin Sturc (6 patents)
- Alena Roubalova (3 patents)
- Unknown
- Unknown
- Unknown
US Patent 4898930 · Granted Feb 6, 1990
No assignee recorded.