Inventor: de Ruyver, Kurt
Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: Talmadge, Paul A.
Inventor: Van Andel, Otto Jan Robert
Inventor: Van Andel, Otto Jan Robert
Inventor: Herrick, Robert D.
Inventor: Hartley, Richard R., Hartley, Kathleen R.
Inventor: Mills, Wayne J., Hampton, Katherine L.