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Lloist Recherche et Developpement S.A.

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Patents Grantslast 30 patents

  • Information Patent Grant

    Ca(OH)2 particles
    • Patent number 6,322,769
    • Issue date Nov 27, 2001
    • Lloist Recherche et Developpement S.A.
    • Henri René Langelin
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Method for processing acid effluents
    • Patent number 6,099,814
    • Issue date Aug 8, 2000
    • Lloist Recherche et Developpement S.A.
    • Henri Rene Langelin
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

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