Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: Burton, Stephen
Inventor: Ritchie, John Stanley
Inventor: Burton, Stephen
Inventor: Burton, Stephen
Inventor: Van Andel, Otto Jan Robert
Inventor: Van Andel, Otto Jan Robert
Inventor: Ware, Richard G.
Inventor: Herrick, Robert D.
Inventor: Mills, Wayne J., Hampton, Katherine L.
Inventor: Turner, Sr., Ted L.
Inventor: Hofland, G. Jack
Inventor: Niedfeldt, Carl J.