Assignee
Inventors
- Jorgen Kleinschroth (2 patents)
- Gerhard Satzinger (39 patents)
- Karl Mannhardt (12 patents)
- Johannes Hartenstein (38 patents)
- Hartmut Osswald (18 patents)
- Gonter Weinheimer (1 patents)
- Edgar Fritschi (24 patents)
US Patent 4681882 · Granted Jul 21, 1987