Notes on improvements made in system since original installation.
The automatic block system of the north-south underground railway of Paris
Das automatische Blocksystem der Untergrund-bahn "Nord-Zud" in Paris
Schweizerische Bauzeitung ; 77 , n 18
1921
4 pages
5 Figs.
Article (Journal)
German
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The north-south underground railway in Paris
Engineering Index Backfile | 1911
Underground railway construction in Paris
Engineering Index Backfile | 1909
|The metropolitan underground railway of Paris
Engineering Index Backfile | 1903
Electric signaling in the Paris underground railway
Engineering Index Backfile | 1920
|Types of subway stations on the north-south railway in Paris
Engineering Index Backfile | 1910
|