Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: de Jong, Cornelis Henricus Maria
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: van Gaalen, Rene, de Boer, Huibert Anne
Inventor: Mooney, Andrew R.
Inventor: Davis, Harold A.
Inventor: de Boer, Huibert Anne
Inventor: de Boer, Huibert Anne, van Gaalen, Rene
Inventor: de Boer, Huibert Anne
Inventor: Gutter, Martien
Inventor: Gutter, Martien
Inventor: Gutter, Martien
Inventor: Platt, Graeme Charles
Inventor: Ruigrok, Wouter
Inventor: Edgar Norman Swane