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Find number abc

If bc17a - 6a575 = 255cb find number abc. Multiple solutions may exist.

Correct answers: 18

The first user who solved this task is Nasrin 24 T.

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First U.S. commercial helicopter license

In 1946, the New York Journal-American newspaper was issued License No. 1 for its helicopter by the Cicil Aeronautics Administration. The helicopter was used for news gathering and delivering photographs. It was a Bell 47B, which had a cruising speed up to 100 m.p.h.«

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