A diagram showing the arrangement of signals. The signals are semaphores, worked by electric motors. (600 w.)
Union automatic signals on the Lackawanna
R R Gaz
1900
Article (Journal)
English
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Signals and interlocking for Lackawanna suburban electrification
Engineering Index Backfile | 1931
|Lackawanna suburban electrification
Engineering Index Backfile | 1931
|Lackawanna suburban electrification
Engineering Index Backfile | 1931
|Engineering Index Backfile | 1931
Engineering Index Backfile | 1945