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Application filed by Mitsui Mining & Smelting CofiledCriticalMitsui Mining & Smelting Co
Priority to FI751648ApriorityCriticalpatent/FI59818C/fi
Publication of FI751648A7publicationCriticalpatent/FI751648A7/fi
Application grantedgrantedCritical
Publication of FI59818BpublicationCriticalpatent/FI59818B/fi
Publication of FI59818CpublicationCriticalpatent/FI59818C/fi