Inventor: Danziger, Gavriel
Inventor: Danziger, Gavriel
Inventor: van de Pol, Peter
Inventor: Ten Have, Theodorus C. L.
Inventor: Bornstein, Menachem
Inventor: Bornstein, Menachem
Inventor: Madsen, Christian Hald
Inventor: Danziger, Gavriel
Inventor: Danziger, Gavriel
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: van der Zwet, Alexius Joannes Joseph
Inventor: van der Zwet, Alexius Joannes Joseph
Inventor: Beekenkamp, Annie Cornelia