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Application filed by Lab Nac Eng Tec Ind Grupo EstfiledCriticalLab Nac Eng Tec Ind Grupo Est
Priority to PT10124793ApriorityCriticalpatent/PT101247B/pt
Publication of PT101247ApublicationCriticalpatent/PT101247A/pt
Publication of PT101247BpublicationCriticalpatent/PT101247B/pt
Leather treatment process for leather coloring, leather coloring process performed on leather thereby treated, and leather article produced by the leather coloring process