Nilce Ortiz

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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