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Scientific American, Vol. 26, No. 17 (April 1872) (1872)

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An illustration from Scientific American, Vol. 26, No. 17 (April 1872), 1872, leaf 0
btained letters patent thereon, through views of the project, we clip some paragraphs, which explain and upon their tops are fastened the rails for the sidewalk to the Scientific American Patent Agency, October 10,1871. He the principal features. move upon. The pillars will be pleasing to the… … who desire, can go up to that second represent details. SPEER'S ENDLESS TRAVELING OR RAILWAY SIDEWALK. © 1872 SCIENTIFIC AMERICAN, INC

Patents · Lackawanna · Machine · Iron · Scientific American · Water · Takes place · Lower ends · Trade mark · Cast Iron · Cupro ammonium · Ten dollars · Emery wheels · Piston rod · Letters patent

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