Inventor: Danziger, Gavriel
Inventor: Tuinier, Wander Durk
Inventor: Wezelenburg, Jr., Jan-Willem
Inventor: Tuinier, Wander Durk
Inventor: Tuinier, Wander
Inventor: Danziger, Gavriel
Inventor: Heinrich, Westhoff
Inventor: Westhoff, Heinrich
Inventor: Lommerse, Henry
Inventor: Houbraken, Anna M. W. P.
Inventor: Houbraken, Anna M. W. P.
Inventor: Westhoff, Heinrich
Inventor: Houbraken, Anna M. W. P.