Assignee
Inventors
- Kurt Blank (25 patents)
- Friedrich Halberschmidt (12 patents)
- Heinz-Josef Reinmold (11 patents)
- Josef Audi (12 patents)
- Jakob Kaesmacher (2 patents)
- Ralf Reinicke (2 patents)
- Udo Niedenhoff (1 patents)
US Patent 4853019 · Granted Aug 1, 1989