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George Koval smuggles secrets about the atomic bomb back to the USSR (10 ore 46 min, 14 nov 1948 anni – 13 ore 25 min, 18 marzo 1949 anni)

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2 feb 2019

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10 ore 46 min, 14 nov 1948 anni

13 ore 25 min, 18 marzo 1949 anni

~ 4 months and 3 days

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