Assignee
Inventors
- Jiri Krepelka (7 patents)
- Iva Vancurova (1 patents)
- Karel Rezabek (2 patents)
- Milan Melka (5 patents)
- Vojtech Pujman (2 patents)
- Stanislava Pokorna (2 patents)
- Ruzena Reichlova (2 patents)
- Slavjanka Cernochova (1 patents)
US Patent 4661297 · Granted Apr 28, 1987