Headwaygraph system installed by Brooklyn and Queens Transit Corporation to record car movements; utilize telephone circuits. (see also Elec. Ry. Jl., vol. 75, no. 8, Mar. 1931, p. 144, 1 fig)
Checking up Brooklyn cars
Elec. Traction
Electric Traction ; 27 , n 2
1931
2 pages
2 Figs.
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1931
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