Find number abc
If b14c3 - 243c9 = ca094 find number abc. Multiple solutions may exist.Correct answers: 45
The first user who solved this task is Djordje Timotijevic.
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Tin can key opener patentedIn 1866, the first U.S. patent for a tin can with a key opener was issued to J. Osterhoudt of New York City (No. 58,554). Described as an "improved method of opening tin cans," the can featured a projecting lip and key.«* |