Assignee
Inventors
- Dieter Freitag (181 patents)
- Uwe Westeppe (47 patents)
- Claus Wulff (48 patents)
- Karl-Herbert Fritsch (7 patents)
- Carl Casser (25 patents)
- Gunther Weymans (28 patents)
- Lutz Schrader (9 patents)
- Werner Waldenrath (26 patents)
US Patent 5227458 · Granted Jul 13, 1993