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Edison produced his most important inventions at Menlo Park, New Jersey 1876-87.

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16y ago
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15y ago

He didn't, Thomas Oliver did. See related links below.

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14y ago

Sort of; Dictaphone is actually the name of a company, but Dictaphone's earliest recording system was a wax cylinder - which was invented by Edison.

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12y ago

Yes, Thomas Alva Edison did make the microphone. >_<

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Q: Did Thomas Edison invent the dictaphone?
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