Inventor: Kievit, Christa
Inventor: Kievit, Christa
Inventor: Clifton, Richard Paul
Inventor: Saul, Robert Mark
Inventor: Kolster, Peter R.
Inventor: Bourquin, Andre
Inventor: Bremer, Hinrich
Inventor: Troelstra, Johan
Inventor: Bakhuijzen, Arie
Inventor: Verhoef, Gijsbertus
Inventor: van der Zwet, Alexius Johannes Joseph
Inventor: Tancredi, Jr., Robert J.
Inventor: Kolster, Peter R.
Inventor: Crowther, Albert Timothy Alan, Tristram, David Ralph
Inventor: Spivey, James W.
Inventor: Hubbard, Agnes, Spivey, James
Inventor: Hubbard, Agnes, Spivey, James
Inventor: Churchus, John William