Electric gear, governed by approach of train, and released as train leaves, whereby individual gatekeepers are rendered unnecessary; map of Paris Metropolitan and Nord-Sud railways, showing exchange stations.
Automatic platform gates on the Paris Metropolitan railway
Ry Gaz
Railway Gazette and Railway News ; 52 , n 9
1930
2 pages
5 Figs.
Article (Journal)
English
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Engineering Index Backfile | 1927
Engineering Index Backfile | 1931
Engineering Index Backfile | 1905
|Engineering Index Backfile | 1902
The Paris metropolitan railway
Engineering Index Backfile | 1902
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