Autonomous Global Hawk Unmanned Aircraft System Surpasses 200,000 Flight Hours

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Northrop Grumman Corp. (NYSE: NOC) Delayed: 543.58 -6.37 (1.16%)
Previous Close $549.95    52 Week High $253.09 
Open $547.06    52 Week Low $175.00 
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Day Low $542.74    EPS $8.35 
Volume 335,976