Inventor: van Langen, Gerard
Inventor: van Langen, Gerard
Inventor: van Langen, Gerard
Inventor: Smit, Obed Jacob
Inventor: Hansen, Hans A.
Inventor: Egger, Janet N.
Inventor: Hansen, Hans A.
Inventor: Hansen, Hans A.
Inventor: Smit, Obed Jacob
Inventor: Scheys, Diederik Alexander Maria
Inventor: Egger, Janet N.
Inventor: Ceballos, Matias Eduardo Avendano
Inventor: Hansen, Hans A.
Inventor: Hansen, Hans A.
Inventor: Pavlich, John C.
Inventor: Egger, Janet N.