Inventor: Noodelijk, Robert
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beers, Catharina Maria
Inventor: Beekenkamp, Annie Cornelia
Inventor: Brennan, Rex M.
Inventor: Brennan, Rex M.
Inventor: Noodelijk, Robert
Inventor: Beekenkamp, Annie Cornelia
Inventor: Beekenkamp, Annie Cornelia
Inventor: Vivies, Christian
Inventor: Beers, Martinus Petrus
Inventor: Beers, Martinus Petrus
Inventor: Snelling, Catherine, Langford, Geoffrey
Inventor: Anderson, Malcolm M.
Inventor: McAfee, Jr., George
Inventor: Anderson, Malcolm M.
Inventor: Anderson, Malcolm M.
Inventor: Spoor, Gerald A.