Keywords: Henard - continuous train design 1886.png en 1886 design by Eugène Hénard 1849-1923 for a continuous train or moving sidewalk for the 1889 Paris Exposition 1886 cite book Science progrès découverte http //books google com/books id 0FjlWp8aQmMC pg PA276 2013-05-26 1886 Dunod 276 Eugène Hénard PD-Art Uploaded with UploadWizard Eugène Hénard |