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Automatic sound level control
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Patent number 10,127,923
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Issue date Nov 13, 2018
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AT&T Mobility II LLC
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Mostafa Tofighbakhsh
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H03 - BASIC ELECTRONIC CIRCUITRY
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Automatic sound level control
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Patent number 9,741,361
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Issue date Aug 22, 2017
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AT&T Mobility II LLC
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Mostafa Tofighbakhsh
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H03 - BASIC ELECTRONIC CIRCUITRY
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Automatic sound level control
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Patent number 9,318,101
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Issue date Apr 19, 2016
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AT&T Mobility II LLC
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Mostafa Tofighbakhsh
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Automatic sound level control
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Patent number 8,428,947
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Issue date Apr 23, 2013
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AT&T Intellectual Property I, L.P.
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Mostafa Tofighbakhsh
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G10 - MUSICAL INSTRUMENTS ACOUSTICS