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The first divice used to for gathering very big crowds
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The well know communiction, cup and ire trick was invnted
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David Edwards hughes invents the first modern day microphone. He is created with the invition even though the original patent went to Thomkas Edison
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C. Wente Bell produsces the fisrt inovtion of the condenser microphone.
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The first modenrn practical oil mic is created by Captain H. J. Round.
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The DM-1001 becomes a universaly used microphone.
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In 2008, new fiber optic tecnology is introduced to microphones