the Clément-Bayard automobile company was sold to André Citroën, in whom Adolphe Clément also invested financially, and the factory at Levallois-Perret became the centre of 2CV manufacturing for the next 40 years. References Defunct motor vehicle manufacturers of France Defunct aircraft manufacturers of France Companies based in Paris Vehicle manufacturing companies established in 1903 Vehicle manufacturing companies disestablished in 1922 French companies established in 1903 1922 disestablishments in France Vintage vehicles Brass Era vehicles