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Scientific American, Vol. 31, No. 4 (July 1874) (1874)
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Y 25, 1874. [NEW SERIES.] J IN ADVANCE. The Magnetic Metals. culars, may be obtained by addressing the inventor, Mr. IMPROVED HOISTING MACHINE. It is well known that, besides iron, there are a few other The machiile illustrated in the annexed engraving is the Volney W. Mason, post office lock… … inclosing of gas pipes in wider tubes, having MASON'S IMPROVED HOISTING MACHINE. All further information required, with cir © 1874 SCIENTIFIC AMERICAN, INC.Patents · Improved · Valve · Inches · Horse · Asks · Horse power · Iron · Patent office · Annular recess · Scientific American · Spring safety · Sulphuric acid · Post office · Rain water · Sewing machine · Van haagen
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