New shelters which Ministry of Home Security is completing underneath sections of underground railway system make provision for furnishing duplicate supplies of power; shelters are situated 40 ft immediately beneath railway, or 100 ft below ground level. (See also Elec Rev v 131 n 3386 Oct 16 1942 p 481-4)
Deep shelters
Elec Times
Electrical Times ; 102 , n 2657
1942
Article (Journal)
English
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Engineering Index Backfile | 1942
Online Contents | 2004
NTIS | 1973
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