Inventor: Apgar, Paul, Apgar, Lindi
Inventor: Hollingsworth, Donald
Inventor: Morrison, Kenneth M.
Inventor: Rudolph, Nathan H.
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Mary Helen Poirier