Find number abc
If ccc99 + a120c = 1b6a04 find number abc. Multiple solutions may exist.Correct answers: 20
The first user who solved this task is Nílton Corrêa de Sousa.
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Fastening patentIn 1913, the first U.S. patent for a hookless fastening for universal use was issued to Gideon Dundback of Hoboken, N.J. |