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Priority claimed from SE8701644Aexternal-prioritypatent/SE460416B/en
Priority claimed from SE8701643Aexternal-prioritypatent/SE462715C/en
Application filed by Nobel Kemi AbfiledCriticalNobel Kemi Ab
Priority claimed from EP88200732Aexternal-prioritypatent/EP0288122B1/en
Application grantedgrantedCritical
Publication of ATE85970T1publicationCriticalpatent/ATE85970T1/en