Inventor: Prebble, Tim, Prebble, Hamish
Inventor: Hooijman, Aloysius A. J.
Inventor: Hollingsworth, Donald
Inventor: Rudolph, Nathan H.
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm