Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: Aughenbaugh, Ernest S.
Inventor: Zaiger, Gary Neil, Gardner, Leith Marie
Inventor: Van Andel, Otto Jan Robert
Inventor: Van Andel, Otto Jan Robert
Inventor: Herrick, Robert D.
Inventor: Pezzulla, Anna M.
Inventor: Mills, Wayne J., Hampton, Katherine L.
Inventor: Briggs, Carroll G.
Inventor: Hofland, G. Jack
Inventor: Zaiger, Chris F.
Inventor: Briggs, Carroll G.
Inventor: Jacob Jude Wicks
Inventor: Niedfeldt, Carl J.