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Scientific American, Vol. 85, No. 4 (July 1901) (1901)

leaf 14

An illustration from Scientific American, Vol. 85, No. 4 (July 1901), 1901, leaf 14
PATENT TELEPHONE CABLE, With Paper and Air Space Insulation. !•

Automobile · Brake · Motor · Sand · Patents · Sewing machine · Scientific American · Track magnets · Total weight · Horse power · Years ago · Motor carriage · Type writing · Iron ore · Track shoes

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