Assignee
Inventors
- Manfred Zwiersch (1 patents)
- Edith Mader (1 patents)
- Karl-Heinz Freitag (1 patents)
- Rosemarie Plonka (1 patents)
- Marianne Radatz (1 patents)
- Heinz Momberg (1 patents)
- Manfred Barth (3 patents)
US Patent 5034276 · Granted Jul 23, 1991