Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: Sanders, Monica Maria Adelheid
Inventor: Sanders, Monica Maria Adelheid
Inventor: Sanders, Monica Maria Adelheid
Inventor: Sanders, Monica Maria Adelheid
Inventor: Sanders, Monica Maria Adelheid
Inventor: Sanders, Monica Maria Adelheid
Inventor: Sanders, Monica Maria Adelheid
Inventor: Van Andel, Otto Jan Robert
Inventor: Sanders, Monica