Inventor: Turpin, Susanna
Inventor: Turpin, Susanna
Inventor: Hjeltnes, Stein Harald
Inventor: Noodelijk, Robert
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Thibault, Bernard
Inventor: Beekenkamp, Annie Cornelia
Inventor: Hart, Roy, Brewer, Lester Raymond
Inventor: Hull, George Edward
Inventor: Hull, George Edward
Inventor: Ranney, Thomas G.
Inventor: Noodelijk, Robert
Inventor: Beekenkamp, Annie Cornelia
Inventor: Beekenkamp, Annie Cornelia
Inventor: Kopan, Volodymyr
Inventor: Hull, George E.
Inventor: Beers, Martinus Petrus
Inventor: Beers, Martinus Petrus