Inventor: van der Velden, Josephus M.
Inventor: Hoekstra-Arisz, Catharina Marie
Inventor: Quemard, Pascal
Inventor: Schoenmakers, Kees
Inventor: Cornelis, Daniel
Inventor: Kolster, Peter Rudolf
Inventor: Arisz, Catharina M.
Inventor: van Leyssen, Hans
Inventor: Bradford, Virginia
Inventor: William A. Warriner
Inventor: William A. Warriner
Inventor: William A. Warriner
Inventor: J. Benjamin Williams
Inventor: David L. Armstrong