Inventor: Danziger, Gavriel
Inventor: Danziger, Gavriel
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Greyvenstein, Ockert F. C.
Inventor: Kievit, Christa
Inventor: Kievit, Christa
Inventor: Kievit, Christa
Inventor: Bornstein, Menachem
Inventor: Bornstein, Menachem
Inventor: Danziger, Gavriel
Inventor: Danziger, Gavriel
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Bornstein, Menachem