Inventor: van Sambeek, Ellen
Inventor: van Sambeek, Ellen
Inventor: Read, Charles Richard
Inventor: van Langen, Gerard
Inventor: Read, Charles Richard
Inventor: van Langen, Gerard
Inventor: van Langen, Gerard
Inventor: Grazzini, Richard A.
Inventor: Grazzini, Richard A.
Inventor: van Sambeek, Ellen
Inventor: Hardy, Rosemary
Inventor: van Sambeek, Ellen
Inventor: Smit, Obed Jacob
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Smit, Obed Jacob
Inventor: Ceballos, Matias Eduardo Avendano
Inventor: Stemkens, Henricus Godefridus Wilhelmus