Assignee
Inventors
- Willie Erschens (1 patents)
- Franz J. Mencher (1 patents)
- Peter Brosius (7 patents)
- Klaus Grave (1 patents)
- Bernhard Zender (1 patents)
- Peter Schardt (1 patents)
- Gerd Hessek (1 patents)
- Ferdinand Alten (12 patents)
US Patent 5184806 · Granted Feb 9, 1993