Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Burton, Stephen
Inventor: Ritchie, John Stanley
Inventor: Burton, Stephen
Inventor: Gutter, Martien Everett
Inventor: Doyle, James, Ferguson, Louise
Inventor: Gutter, Martien Everett
Inventor: Gutter, Martien Everett
Inventor: Gutter, Martien Everett
Inventor: Gutter, Martien Everett
Inventor: Burton, Stephen
Inventor: Ware, Richard G.
Inventor: Plattner, Anton
Inventor: Albert Aspeslagh, August van Speybrouck
Inventor: Vosters, James B.