Inventor: Kamstra, Silvan Adelmar
Inventor: Kamstra, Silvan Adelmar
Inventor: Kamstra, Silvan Adelmar
Inventor: Barends, Eveline
Inventor: van Staalduinen, Eliza
Inventor: Beekenkamp, Annie Cornelia
Inventor: Barends, Eveline
Inventor: Snijder, Ronald Christiaan
Inventor: Van Swieten, Martinus Nicolaas Gerardus
Inventor: Kamstra, Silvan Adelmar
Inventor: Kleinwee, Theodorus Cornelis Maria van
Inventor: Beekenkamp, Annie Cornelia
Inventor: Snijder, Ronald Christiaan
Inventor: Snijder, Ronald Christiaan