Assignee
Inventors
- Guenter Boettger (5 patents)
- Hans Hammer (22 patents)
- Otto Hertel (10 patents)
- Gerhard Jeschek (11 patents)
- Herbert Mueller (77 patents)
- Emil Scharf (6 patents)
- Willibald Schoenleben (9 patents)
US Patent 4567303 · Granted Jan 28, 1986