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Who Invented Earbuds? [Solved]
French engineer Ernest Mercadier patented a set of in-ear headphones in 1891, Mercadier was awarded U.S. Patent No. 454,138 for “improvements in telephone-receivers…which shall be light enough to be carried while in use on the head of the operator.”
Who invented earbuds?
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Who invented headphones?
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Why Headphones Were Invented
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