All relay plant includes controls of 15 crossovers, 11 power switches, 4 electric locks on hand throw switches, 14 high signals and 22 dwarf signals at east end of Huntington, W Va, yard of Chesapeake and Ohio.
C and O consolidates interlockings
Ry Signaling Communications
Railway Signaling and Communications ; 48 , n 12
1955
Aufsatz (Zeitschrift)
Englisch
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