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Anti-noise panel
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Patent number 8,579,080
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Issue date Nov 12, 2013
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Michele Angelico
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Noise abatement wall
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Patent number 7,308,965
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Issue date Dec 18, 2007
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Ecole Polytechnique
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Bernard Sapoval
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Anechoic chamber
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Patent number 6,371,240
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Issue date Apr 16, 2002
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Austin Acoustic Systems, Inc.
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Robert W. Hayes
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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