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C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
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FR813488D1935-10-071936-10-06Procédé de fabrication de produits basiques contenant de l'acide phosphorique et convenant notamment comme engrais
ExpiredFR813488A
(fr)