Inventor: Janson, Nicolaas Johannes Stephanus
Inventor: Hollingsworth, Donald
Inventor: Whiting, Hubert F.
Inventor: Whiting, Hubert F.
Inventor: Whiting, Hubert F.
Inventor: Rudolph, Nathan H.
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm