126 Scientific American February 6, 1904. … Railway signal, electric, W. V. Moak 750,296 your telephone transmitter. It Railway switch, F. Bayless 750,334 SIGNALING THROUGH SPACE does not affect the efficiency of the SPLITDORFi^PARK COILS Railway trains, apparatus for automatically conversation, yet it insures protec- without wires.—An…
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