System installed on line between Wilmington, Delaware and Washington, D C, which controls wayside automatic signals as well as cab signals without use of line wires. (see also Ry Age v 99 n 7 Aug 17 1935 p 210-2)
Coded track-circuit signaling on Pennsylvania
Ry Signaling
Railway Signaling ; 28 , n 5
1935
Aufsatz (Zeitschrift)
Englisch
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Coded track-circuit signaling on Pennsylvania
Engineering Index Backfile | 1935
Engineering Index Backfile | 1942
New Haven installs five-aspect signaling controlled by coded track circuits
Engineering Index Backfile | 1943
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Engineering Index Backfile | 1907
|