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Barrier wall element
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Patent number 9,988,778
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Issue date Jun 5, 2018
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KIRCHDORFER FERTIGTEILHOLDING GMBH
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Alexander Barnas
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Sound protection component
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Patent number 9,538,267
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Issue date Jan 3, 2017
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KIRCHDORFER FERTIGTEILHOLDING GMBH
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Alexander Barnas
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES