Indexed in Engineering Index 1944 p 864, from Ry Age Dec 9 1944.
Pere Marquette "makes touchdown" with high school boys
Ry Signaling
Railway Signaling ; 40 , n 12
1944
Aufsatz (Zeitschrift)
Englisch
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Spring switch on Pere Marquette
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Pere Marquette installs C.T.C.
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New interlocking on pere Marquette
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