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Priority claimed from SE07380/70Aexternal-prioritypatent/SE347999B/xx
Priority claimed from SE07382/70Aexternal-prioritypatent/SE348001B/xx
Priority claimed from SE07381/70Aexternal-prioritypatent/SE348000B/xx
Application filed by Boliden AbfiledCriticalBoliden Ab
Publication of FI52743BpublicationCriticalpatent/FI52743B/fi
Application grantedgrantedCritical
Publication of FI52743CpublicationCriticalpatent/FI52743C/fi