Inventor: Tuinier, Wander Durk
Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: Tuinier, Wander Durk
Inventor: Wezelenburg, Jan-Willem
Inventor: Tuinier, Wander
Inventor: Van Andel, Otto Jan Robert
Inventor: Van Andel, Otto Jan Robert
Inventor: Cleveland, David Hendricks
Inventor: Herrick, Robert D.
Inventor: Mills, Wayne J., Hampton, Katherine L.
Inventor: Wandell, Willet N.
Inventor: Hofland, G. Jack
Inventor: William Flemer, Jr.
Inventor: William Flemer, Jr.
Inventor: Niedfeldt, Carl J.