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Find number abc

If 54c18 - 18b1c = b5a06 find number abc. Multiple solutions may exist.

Correct answers: 27

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

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Black American patent

In 1897, black American inventor P. Walker was issued a U.S. patent for his invention of a "Machine for Seeding Cotton" (No. 577,153). The following year, on 8 Mar 1898, he received another patent for his invention of a "Bait Holder" (No. 600,241)

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