Inventor: Greyvenstein, Ockert F. C.
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Membrey, Stephen, Jackson, Bryan
Inventor: Ranney, Thomas G.
Inventor: Ranney, Thomas G.
Inventor: Ranney, Thomas G.
Inventor: Stemkens, Henricus G. W.
Inventor: Unger, Christiaan
Inventor: Fleuren, Henricus Marie Gerardus Carolus
Inventor: van den Aardwegh, Kees