Inventor: Danziger, Gavriel
Inventor: Kamstra, Silvan
Inventor: Hoekert, Hendrick Cozijn
Inventor: Hoekert, Hendrick Cozijn
Inventor: Klemm, Per, Mundinger-Flad, Traude
Inventor: Danziger, Gavriel
Inventor: Hoekert, Hendrick Cozijn
Inventor: Hoekert, Hendrick Cozijn
Inventor: Hoekert, Hendrick Cozijn
Inventor: Heinrich, Westhoff
Inventor: Danziger, Gabriel
Inventor: Danziger, Gabriel
Inventor: Danziger, Gabriel
Inventor: Butcher, John, Gooderham, Paul
Inventor: Hooijman, Aloysius A. J.
Inventor: Westhoff, Heinrich
Inventor: Lommerse, Henry