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Q38.1Al Edison's first invention wasdeclared a1-Disaster2-Success3-Machine4-Failurepls reply fast |
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Answer» phonograph The American inventor ANNOUNCES his invention of the phonograph, a way to record and play back sound. Edison stumbled on one of his great inventions–the phonograph–while working on a way to record telephone COMMUNICATION at his laboratory in Menlo PARK, NEW Jersey. |
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