Inventor: Noodelijk, Robert
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beekenkamp, Annie Cornelia
Inventor: Kardos, Joshua H., Dirr, Michael A.
Inventor: Noodelijk, Robert
Inventor: Beekenkamp, Annie Cornelia
Inventor: Beekenkamp, Annie Cornelia
Inventor: Torn, Douglas I.
Inventor: Lee, Robert Edward
Inventor: Dirr, Michael A.
Inventor: Beers, Martinus Petrus
Inventor: Beers, Martinus Petrus
Inventor: Barendse, Nicolaas Wilhelmus Jozef Maria
Inventor: Ison, William G.