Assignee
Inventors
- Harald Kalippke (9 patents)
- Friedrich Wendel (14 patents)
- Erhard Renninger (17 patents)
- Johannes Meiwes (23 patents)
- Albert Gerhard (25 patents)
- Dieter Dick (10 patents)
- Herbert Becker (23 patents)
US Patent 5234192 · Granted Aug 10, 1993