Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: de Jong, Gys Petrus
Inventor: Van Andel, Otto Jan Robert
Inventor: van Delft, M. Peter
Inventor: Van Andel, Otto Jan Robert
Inventor: Herrick, Robert D.
Inventor: Mills, Wayne J., Hampton, Katherine L.
Inventor: Hofland, G. Jack
Inventor: James W. Hines, Jr.
Inventor: Conrad Andrew Skimina
Inventor: William E. Silva
Inventor: Francis C. Tomlinson
Inventor: Gregory, Emily Bctts
Inventor: Varden, Owen H.
Inventor: Niedfeldt, Carl J.