Find number abc
If 3b3a1 + aca2a = 11ccb8 find number abc. Multiple solutions may exist.Correct answers: 28
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Street sweepersIn 1896, black American inventor C.B. Brooks was issued a U.S. patent for street sweepers (No. 560,154). He was issued an earlier patent for street sweepers on 17 Mar of the same year (No. 556,711). Brooks also held a patent for a punch issued 31 Oct 1893 (No. 507,672). |