Find number abc
If 605ca + 523b3 = aa29ab find number abc. Multiple solutions may exist.Correct answers: 17
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Paper pencilIn 1895, the first U.S. patent for a paper pencil was issued to Fredrick E. Blaisdell of Philadelphia, Pa. His patent No. 549,952 was accompanied by No. 550,212 on the same date on a machine for manufacturing pencils. |