Assignee
Inventors
- Rudolf Rosbiegalle (2 patents)
- Karl-Heinz Farber (3 patents)
- Herbert Grimm (1 patents)
- Helmut Schmeisser (1 patents)
- Hermann Schonhut (1 patents)
- Svatopluk Krumnikl (6 patents)
- Gunter Edel (1 patents)
US Patent 4231669 · Granted Nov 4, 1980