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USB audio speaker
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Patent number D798838
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Issue date Oct 3, 2017
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Polk Audio, LLC
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Michael DiTullo
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D14 - Recording, communication, or information retrieval equipment
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Ruggedized sound system
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Patent number 9,185,478
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Issue date Nov 10, 2015
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Definitive Technology, LLC
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Ryan Andrew Minarik
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Portable sound system
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Patent number D726687
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Issue date Apr 14, 2015
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DEI Headquarters, Inc.
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Ryan Andrew Minarik
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D14 - Recording, communication, or information retrieval equipment
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