Assignee
Inventors
- Ralf Mertin (5 patents)
- Klaus Claar (38 patents)
- Jan Christopher Schilling (75 patents)
- Jurgen Schrader (31 patents)
- Holger Seel (63 patents)
- Helmut Staiger (1 patents)
- Artur Mangold (4 patents)
- Gerhard Zweigart (12 patents)
US Patent 4815775 · Granted Mar 28, 1989