Indexed in Engineering Index 1930, p. 1466, from Ry. Gaz., Dec. 5, 1930.
French railways adopt color-light signals
Ry. Signaling
Railway Signaling ; 24 , n 2
1931
2 pages
2 Figs.
Aufsatz (Zeitschrift)
Englisch
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Colour light signals on french railways
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