Installation of 24-lever mechanical interlocking plant at crossing of Illinois Central at Delavar, Ill., eliminates train stops; unique electric locking system.
The Chicago and Alton installs mechanical plant
Ry. Signaling
Railway Signaling ; 22 , n 8 ; p 295-296
1929
2 pages
4 Figs.
Aufsatz (Zeitschrift)
Englisch
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