Assignee
Inventors
- Wolfgang Opitz (14 patents)
- Bernhard Pelster (9 patents)
- Romanis Fruchtmann (24 patents)
- Udo Krupka (6 patents)
- Walter Gauss (6 patents)
- Hartmut Kiehne (1 patents)
- Hermann Oediger (19 patents)
US Patent 4628062 · Granted Dec 9, 1986