Assignee
Inventors
- Helmut Blum (24 patents)
- Wolfgang Greb (21 patents)
- Hinrich Moeller (24 patents)
- Dietrich Schmaehl (1 patents)
- Harald Schnegelberger (11 patents)
- Hannsjoerg Sinn (1 patents)
- Franz Wingen (1 patents)
US Patent 4608368 · Granted Aug 26, 1986