Books?id=7bAWQFTeEK4C&pg=PA183&lpg=PA183&dq=pierre+bourgeois+pathe+marconi&source=bl&ots=VeqRvg7P1C&sig=AwtgcFlg3uYCwyri5PFSdeJtsp4&hl=fr&ei=EyIrTbXTKsez8QP43r2uAg&sa=X&oi=book result&ct=result&resnum=10&ved=0CE8Q6AEwCTgK#v=onepage&q=pierre%20bourgeois%20pathe%20marconi&f=false (Marguerite)