Factors underlying successful application of this important development; technical details and operating rules considered; table showing financial data regarding 30 actual installations.
Automatic interlocking
Ry Signaling
Railway Signaling ; 25 , n 7
1932
Aufsatz (Zeitschrift)
Englisch
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Automatic interlocking in California
Engineering Index Backfile | 1933
Automatic interlocking on Frisco
Engineering Index Backfile | 1938
Automatic interlocking on Frisco
Engineering Index Backfile | 1938
Automatic interlocking on Wabash
Engineering Index Backfile | 1935
Automatic interlocking in Texas
Engineering Index Backfile | 1935