Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: van de Pol, Peter
Inventor: Kievit, Christa
Inventor: Kievit, Christa
Inventor: Kievit, Christa
Inventor: Ten Have, Theodorus C. L.
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: van de Pol, Peter
Inventor: Beekenkamp, Annie Cornelia
Inventor: van de Pol, Peter
Inventor: van der Zwet, Alexius Joannes Joseph
Inventor: van der Zwet, Alexius Joannes Joseph
Inventor: Madsen, Christian Hald
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: van der Zwet, Alexius Joannes Joseph