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Find number abc

If bb5c7 - bb09c = a35 find number abc. Multiple solutions may exist.

Correct answers: 1

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The only thing wrong with a pe...

The only thing wrong with a perfect drive to work is that you end up at work.

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Refrigeration patent

In 1950, black American inventor F.M. Jones was issued a patent for a "System for Controlling Operation of Refrigeration Units" (No. 2,509,099).

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