Inventor: Danziger, Gavriel
Inventor: Danziger, Gavriel
Inventor: Saul, Robert Mark
Inventor: de Boer, Petrus
Inventor: Wicki-Freidl, Peter
Inventor: Danziger, Gavriel
Inventor: Danziger, Gavriel
Inventor: Danziger, Gavriel
Inventor: de Boer, Petrus
Inventor: Wicki-Freidl, Peter
Inventor: Danziger, Gavriel
Inventor: Hofmann, Birgit
Inventor: Bremer, Hinrich
Inventor: Troelstra, Johan
Inventor: Bakhuijzen, Arie
Inventor: Verhoef, Gijsbertus