Inventor: Danziger, Gavriel
Inventor: Noodelijk, Robert
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Zaias-Fast, Magaly
Inventor: Beekenkamp, Annie Cornelia
Inventor: Noodelijk, Robert
Inventor: Beekenkamp, Annie Cornelia
Inventor: Beekenkamp, Annie Cornelia
Inventor: Danziger, Gavriel
Inventor: Heinrich, Westhoff
Inventor: Beers, Martinus Petrus
Inventor: Beers, Martinus Petrus
Inventor: Westhoff, Heinrich
Inventor: Lommerse, Henry