Inventor: Danziger, Gavriel
Inventor: Oostveen, Cornelis A.
Inventor: Danziger, Gavriel
Inventor: McDonald, Daniel Bede
Inventor: Heinrich, Westhoff
Inventor: Kunhardt, Linda Elin Noack
Inventor: Fick, Paul Johannes Hendrik
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.