Assignee
Inventors
- Alois Stejskal (2 patents)
- Zdenek Havranek (2 patents)
- Miroslac Stepanek (1 patents)
- Jan Hrdina (2 patents)
- Frantisek Cada (4 patents)
- Zelmira Borovcova (2 patents)
- Jaroslav Slingr (2 patents)
US Patent 4527384 · Granted Jul 9, 1985