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Individual
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Individual
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Priority to ES160315ApriorityCriticalpatent/ES160315A1/es
Publication of ES160315A1publicationCriticalpatent/ES160315A1/es
Perfeccionamientos introducidos en la pirogenación desfenolante de materias carbonosas, en particular en la de los esquistos bituminosos del carbón, de los lignitos o braukohlen de las turbas y materias análogas