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Frarbenindustrie A G
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Frarbenindustrie A G
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Priority to ES168897ApriorityCriticalpatent/ES168897A1/es
Publication of ES168897A1publicationCriticalpatent/ES168897A1/es
ES168897A1945-02-081945-02-08Procedimiento para la obtencion de tntes uniformes en fibras celulosicas, con colorantes de tina y sulfurosas
ExpiredES168897A1
(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