Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: Skotak, Jr., Chester
Inventor: Skotak, Chester
Inventor: de Castro Filho, Estevam Emygdio
Inventor: Van Andel, Otto Jan Robert
Inventor: Van Andel, Otto Jan Robert
Inventor: Herrick, Robert D.
Inventor: Mills, Wayne J., Hampton, Katherine L.
Inventor: Hofland, G. Jack
Inventor: William H. Collins
Inventor: William Flemer, III
Inventor: William Flemer, III
Inventor: Niedfeldt, Carl J.