Inventor: Tamura, Masahiko
Inventor: Morgan, Edmond Robert
Inventor: Morgan, Edmond R., Hikage, Takashi
Inventor: Dofferhoff, Hans
Inventor: Oostveen, Cornelis A.
Inventor: Klemm, Nils, von Tubeuf, Guido
Inventor: Falstad, III, Clarence H.
Inventor: Morgan, Edmond Robert
Inventor: Falstad, III, Clarence H.
Inventor: van Aart, Marinus Adrianus Cornelis