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Priority claimed from JP1979130243Uexternal-prioritypatent/JPS5929953Y2/en
Priority claimed from JP14029279Aexternal-prioritypatent/JPS5665992A/en
Priority claimed from JP9844580Aexternal-prioritypatent/JPS5726186A/en
Priority claimed from FI802937Aexternal-prioritypatent/FI67096C/en
Application filed by Mitsui Mining & Smelting CofiledCriticalMitsui Mining & Smelting Co
Publication of FI830136A0publicationCriticalpatent/FI830136A0/en
Publication of FI830136LpublicationCriticalpatent/FI830136L/en
Publication of FI69318BpublicationCriticalpatent/FI69318B/en
Application grantedgrantedCritical
Publication of FI69318CpublicationCriticalpatent/FI69318C/en