Inventor: Saul, Robert Mark
Inventor: Kapiteijn, Antonius Simon Johannes
Inventor: Kapiteijn, Antonius Simon Johannes
Inventor: Kapiteijn, Anthonius Simon Johannes
Inventor: Kapiteijn, Anthonius Simon Johannes
Inventor: Klaver, Theo C. M.
Inventor: Kapiteijn, Anthonius Simon-Johannes
Inventor: Bremer, Hinrich
Inventor: Troelstra, Johan
Inventor: Bakhuijzen, Arie
Inventor: Kapiteijn, Antonius S. J.
Inventor: Kapiteijn, Antonius S. J.
Inventor: Verhoef, Gijsbertus
Inventor: Heims, Daniel M., Patterson, Frank
Inventor: Hoff, Petrus M. M.
Inventor: Harrison, Richmond E.
Inventor: Espinosa, Gavin
Inventor: Pike, Albert Victor
Inventor: Pike, Albert Victor
Inventor: Schmidt, Paul J.
Inventor: Schmidt, Paul J.