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Application filed by Pietro Guareschi, Societa Metallurgica ItalianafiledCriticalPietro Guareschi
Priority to GR410109901ApriorityCriticalpatent/GR9901B/en
Publication of GR9901BpublicationCriticalpatent/GR9901B/en
GR410109901A1941-10-151941-10-15
METHOD FOR THE MANUFACTURE OF METAL MANGANIUM AND POSSIBLY CLEAN MANGANE DIOXIDE FROM MANGANOUS MINERALS.
GR9901B
(en)