Inventor: Kordes, Wilhelm
Inventor: Evers, Hans-Jurgen
Inventor: Hofmann, Christa
Inventor: Unger, Michael H.
Inventor: Dettmer, Peter, Dettmer, Eleonore
Inventor: Dettmer, Peter, Dettmer, Eleonore
Inventor: Hofmann, Christa
Inventor: Hofmann, Christa