Inventor: van Langen, Gerard
Inventor: van Langen, Gerard
Inventor: van Langen, Gerard
Inventor: Smit, Obed Jacob
Inventor: Smit, Obed Jacob
Inventor: Ceballos, Matias Eduardo Avendano
Inventor: Kanazawa, Yoshiki
Inventor: de Ruiter, Hendrik Marinus
Inventor: Burton, Stephen
Inventor: Ritchie, John Stanley
Inventor: Smith, Donald Robert