This specification was originally published in December, 1939, and is one of a large number of Specifications for A.R.P. purposes published at the request of the Ministry of Home Security by the Institution since the outbreak of war.
British Standard A.R.P. Specifications
Aircraft Engineering and Aerospace Technology ; 13 , 4 ; 114
1941-04-01
1 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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