Inventor: Utecht, Angelika
Inventor: Evers, Hans-Jurgen
Inventor: Kordes, Wilhelm
Inventor: Kordes, Wilhelm
Inventor: Kordes, Wilhelm
Inventor: Kordes, Wilhelm
Inventor: Kordes, Wilhelm
Inventor: Jacob, Helmut B.
Inventor: Evers, Hans-Jurgen
Inventor: Evers, Hans-Jurgen
Inventor: Evers, Hans Jurgen
Inventor: Utecht, Angelika