Inventor: Bulthouse, John
Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: van der Velden, Josephus M.
Inventor: Head, Robert Harold, Head, Lisa Jones
Inventor: Ellerbrook, Mark
Inventor: Katerberg, Gerard
Inventor: Roberson, Robert Jackson
Inventor: van Waaij, Jan Cornelis
Inventor: Moreno, Rodrigo, Maxwell, Scott
Inventor: Schoenmakers, Kees
Inventor: Cornelis, Daniel
Inventor: Saunders, Hiram Wade
Inventor: Peerenboom, Adrianus Antonius
Inventor: Katerberg, Gerard
Inventor: Van Andel, Otto Jan Robert
Inventor: Van Andel, Otto Jan Robert