Inventor: Greyvenstein, Ockert F. C.
Inventor: Kapiteijn, Antonius Simon Johannes
Inventor: Kapiteijn, Antonius Simon Johannes
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Membrey, Stephen, Jackson, Bryan
Inventor: Kapiteijn, Anthonius Simon Johannes
Inventor: Kapiteijn, Anthonius Simon Johannes
Inventor: Klaver, Theo C. M.
Inventor: Kapiteijn, Anthonius Simon-Johannes
Inventor: Stemkens, Henricus G. W.
Inventor: Unger, Christiaan