Inventor: Danziger, Gavriel
Inventor: Kolster, Peter R.
Inventor: Danziger, Gavriel
Inventor: Bourquin, Andre
Inventor: Heinrich, Westhoff
Inventor: Westhoff, Heinrich
Inventor: Lommerse, Henry
Inventor: Houbraken, Anna M. W. P.
Inventor: Tancredi, Jr., Robert J.
Inventor: Houbraken, Anna M. W. P.
Inventor: Westhoff, Heinrich
Inventor: Kolster, Peter R.
Inventor: Houbraken, Anna M. W. P.