File:4713th Defense System Evaluation Squadron.png
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4713th_Defense_System_Evaluation_Squadron.png (300 × 315 pixels, file size: 191 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:35, 21 February 2011 | 300 × 315 (191 KB) | Bwmoll3 | {{Information |Description ={{en|1=Emblem of the 4713th Defense System Evaluation Squadron}} |Source =Scan of USAF patch taken from A Handbook of Aerospace Defense Organization 1946 - 1980, by Lloyd H. Cornett and Mildred W. Johnson, Office of |
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