Assignee
Inventors
- Helmut Stahle (24 patents)
- Herbert Koppe (34 patents)
- Werner Kummer (24 patents)
- Dietrich Arndts (25 patents)
- Walter Kobinger (26 patents)
- Christian Lillie (21 patents)
- Ludwig Pichler (25 patents)
US Patent 4271175 · Granted Jun 2, 1981