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State Council of Civil Defense : ウィキペディア英語版 | State Council of Civil Defense
The State Council of Civil Defense was created by a 1951 Federal Act creating in each US state a State Council of Civil Defense. Identifiably printed on a placard in the film "Alert Today, Alive Tomorrow" the State council of Civil Defense was an iteration of United States Civil Defense following World War II. The council was involved in the development of AT&T's "Bell and Lights" Air Raid Warning System, which spanned Canada and the United States. The Air Raid Warning System, with the prominent letters YBRW indicating the threat/warning levels. == References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「State Council of Civil Defense」の詳細全文を読む
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