Inventor: Bak, Elly, Steur, Nicolaas D. M.
Inventor: van Langen, Gerard
Inventor: Gomez Bullis, Patricia E.
Inventor: Gomez Bullis, Patricia E.
Inventor: van Langen, Gerard
Inventor: van Langen, Gerard
Inventor: Gomez Bullis, Patricia E.
Inventor: Skotak, Jr., Chester
Inventor: Smit, Obed Jacob
Inventor: Skotak, Jr., Chester
Inventor: Skotak, Jr., Chester
Inventor: Deroose, Reginald