Resume of activities of 1924; block signaling completed in 1924 and under consideration; interlocking construction in 1924; desk controllers and remote-control machines.
Signal and interlocking construction
Ry. Age
Railway Age ; 78 , n 1
1925
3 Figs.
Aufsatz (Zeitschrift)
Englisch
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An active year in interlocking and signal construction
Engineering Index Backfile | 1926
|Electronic railway-signal interlocking
Engineering Index Backfile | 1960
Interlocking construction and specifications
Engineering Index Backfile | 1902
|New interlocking construction ideas
Engineering Index Backfile | 1924
|