Inventor: Danziger, Gavriel
Inventor: de Boer, Petrus
Inventor: de Boer, Petrus
Inventor: Danziger, Gavriel
Inventor: Ranney, Thomas G.
Inventor: Ranney, Thomas G.
Inventor: Ranney, Thomas G.
Inventor: Heinrich, Westhoff
Inventor: Fleuren, Henricus Marie Gerardus Carolus
Inventor: Van Andel, Otto Jan Robert
Inventor: Westhoff, Heinrich
Inventor: Lommerse, Henry