Inventor: Danziger, Gavriel
Inventor: Danziger, Gavriel
Inventor: van Gaalen, Rene, de Boer, Huibert Anne
Inventor: Heinrich, Westhoff
Inventor: de Boer, Huibert Anne
Inventor: de Boer, Huibert Anne, van Gaalen, Rene
Inventor: de Boer, Huibert Anne
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.
Inventor: Butler, III, George C.