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The device was originally approved on 1942-10-20 for the Antiaircraft Artillery School. It was redesignated for the Antiaircraft and Guided Missiles Branch of the Artillery School' on 1952-07-15. | The device was originally approved on 1942-10-20 for the Antiaircraft Artillery School. It was redesignated for the Antiaircraft and Guided Missiles Branch of the Artillery School' on 1952-07-15. | ||
On 1957-07-26 the device was redesignated for the U. S. Army Air Defense School. | On 1957-07-26 the device was redesignated for the U. S. Army Air Defense School. | ||
[[Literature]]: Image from Wikimedia Commons | [[Literature]]: Image from Wikimedia Commons | ||
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