Inventor: Noodelijk, Robert
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beekenkamp, Annie Cornelia
Inventor: Noodelijk, Robert
Inventor: Beekenkamp, Annie Cornelia
Inventor: Beekenkamp, Annie Cornelia
Inventor: Timmermans, Wilhelmus, Timmermans-Peters, Wilhelmina
Inventor: Beers, Martinus Petrus
Inventor: Beers, Martinus Petrus
Inventor: Fairweather, Christopher
Inventor: Hollingsworth, Donald