Inventor: Danziger, Gavriel
Inventor: Wezelenburg, Jan-Willem
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: Cleveland, David Hendricks
Inventor: Houbraken, Anna M. W. P.
Inventor: Wandell, Willet N.
Inventor: William Flemer, Jr.
Inventor: William Flemer, Jr.