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Signaling construction continues in large volume
Automatic signals completed on 5127 miles of road, 142 interlocking plants built and 2074 automatic highway crossing signals installed; interesting features of interlocking construction in 1927; highway-crossing protection increased; work under construction; train control in 1927. (See also Ry. Age vol. 84, no. 1, Jan. 7, 1928 pp. 69-75, 2 figs)
Signaling construction continues in large volume
Automatic signals completed on 5127 miles of road, 142 interlocking plants built and 2074 automatic highway crossing signals installed; interesting features of interlocking construction in 1927; highway-crossing protection increased; work under construction; train control in 1927. (See also Ry. Age vol. 84, no. 1, Jan. 7, 1928 pp. 69-75, 2 figs)
Signaling construction continues in large volume
Ry. Signaling
Dunn, J.H. (Autor:in)
Railway Signaling ; 21
1928
14 pages
4 Figs.
Aufsatz (Zeitschrift)
Englisch
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Signaling construction continues in large volume
Engineering Index Backfile | 1928
|Signaling and interlocking construction continues in 10-year average volume during 1928
Engineering Index Backfile | 1929
Nonresidential construction party continues
Online Contents | 1997
Nonresidential construction party continues
British Library Online Contents | 1997
Signaling construction continued in large volume during 1930
Engineering Index Backfile | 1931
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