Find number abc
If 3032c + a6bc5 = 7652a find number abc. Multiple solutions may exist.Correct answers: 72
The first user who solved this task is Djordje Timotijevic.
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Isaac Merrit SingerBorn 27 Oct 1811; died 23 Jul 1875 at age 63.American inventor of a practical sewing machine. While an actor, he invented an excavator (1839) and a wood carver (1849) before he turned itinerant mechanic and improved the sewing machine. His first sewing machine patent, issued 12 Aug 1851 (U.S. No. 8294), had a rocking treadle design, continuous feed, and a straight, vertical needle like modern machines. He settled with Elias Howe for infringement of his prior (1846) sewing machine patent. The company Singer then founded (1856) was, within the decade, the world's largest sewing machine manufacturer. His biggest invention was a new way of marketing to consumers. He spent lavishly on advertising, pioneered affordable purchase by installment credit, and provided after-sale service. In 1863, he retired, with 12 more patents on his machines.« |