Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: de Groot, Leonardus S. J.
Inventor: Gutter, Martien Everett
Inventor: Gutter, Martien Everett
Inventor: van Diemen, Hubertus T.
Inventor: Gutter, Martien Everett
Inventor: Gutter, Martien Everett
Inventor: Gutter, Martien Everett
Inventor: Baars, Johannes
Inventor: Baars, Johannes
Inventor: Stribling, Sally
Inventor: Mislow, III, Gregory John
Inventor: de Gruyter, Andre Paulus