Inventor: Rotolante, Denis
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: Beers, Martinus Petrus
Inventor: Beers, Martinus Petrus
Inventor: Snelling, Catherine, Langford, Geoffrey
Inventor: Valstar, Oscar R.
Inventor: Anderson, Malcolm M.
Inventor: Anderson, Malcolm M.
Inventor: Anderson, Malcolm M.