Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: Timmermans, Wilhelmus, Timmermans-Peters, Wilhelmina
Inventor: Head, William A., Head, Robert H.
Inventor: Fairweather, Christopher
Inventor: Van Opstal, Ron
Inventor: Van Andel, Otto Jan Robert
Inventor: Van Andel, Otto Jan Robert
Inventor: Bolwijn, A. L. Ch.
Inventor: Herrick, Robert D.
Inventor: Mills, Wayne J., Hampton, Katherine L.
Inventor: Zebehazy, Alex J.
Inventor: Zebehazy, Alex J.
Inventor: Zebehazy, Alex J.
Inventor: Hofland, G. Jack