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Scientific American, Vol. 69, No. 16 (1893) (1893)

leaf 15

An illustration from Scientific American, Vol. 69, No. 16 (1893), 1893, leaf 15
fluted magnet constructed as described, with a ey coil upon the end or ends nearest the shank prevents the bolt from turning plate; the sixth, of a sounding box as de- in the rim and tire. scribed; the’ seventh, of a speaking or re} oO L D MACHINE SCREWS hearing tube as described for conveying… … teen pages of useful information and a large number of original engravings of new inventions and discoveries, PARSONS, IDE & CO. &® Circular free. SEWING MACHINE, representing Engineering Works, Steam Machinery, and do Ten Times the Work. New inventions, Novelties in Mechanics, Manufactures,…

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