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Scientific American, Vol. 97, No. 5 (August 1907) (1907)

leaf 7

An illustration from Scientific American, Vol. 97, No. 5 (August 1907), 1907, leaf 7
n bridge, and from these, and feature in these machines is that they have been ar- would remain in true line and level, as distinguished midway between them, is suspended a %-inch copper from the loose and swaying wires of the ordinary ranged to take either single-phase current from the trolley… … A Bridge Carrying the Section Break Switches for Cutting Out a Set of Section Break Switches Shown in the Open Two-Mile Section of the Line. Position. INATJGUBATION OF THE NEW HAVEN BAILBOAS ELECTBIC 8EBVICE.

Adapted · Motor · Device · Planes · Patents · Scientific American · Speed · Feet wide · Snap switch · American supplement · Specific heat · American august · Iver johnson · Switch group · Feet long · San Francisco

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