French aircraft industrialist who invented the propeller used by the French airplanes in World War I.
He graduated from the engineering school Breguet and married the daughter of a prominent Jewish furniture dealer.
He was deported from France for refusing to collaborate with the German aviation industry in World War II.
He married Madeline Minckes in 1919, and the couple later had two sons.
He and Oscar Schindler were both industrialists during World War II.