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Alcoa Aluminio S.A.

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  • Sao Paulo, BR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for whitening kaolin
    • Patent number 5,242,874
    • Issue date Sep 7, 1993
    • Alcoa Aluminio S.A.
    • Fabio M. De Oliveira
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

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