Inventor: Moore, Peter R.
Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: Van Andel, Otto Jan Robert
Inventor: Van Andel, Otto Jan Robert
Inventor: Holtrop, Mathilde H.
Inventor: Holtrop, Mathilde H.
Inventor: Herrick, Robert D.
Inventor: Mills, Wayne J., Hampton, Katherine L.
Inventor: Hofland, G. Jack
Inventor: Burkey, Harold Ivan
Inventor: Burkey, Harold Ivan
Inventor: Burkey, Harold Ivan
Inventor: Russell, Ethel S.
Inventor: Niedfeldt, Carl J.
Inventor: Lothrop, Chester Harper
Inventor: Michler, Louis A.