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Priority claimed from SE8305106Aexternal-prioritypatent/SE440202B/en
Priority claimed from SE8401526Aexternal-prioritypatent/SE452573B/en
Application filed by Kurt Goeran AnderssonfiledCriticalKurt Goeran Andersson
Priority claimed from EP84903567Aexternal-prioritypatent/EP0156870B1/en
Application grantedgrantedCritical
Publication of ATE33581T1publicationCriticalpatent/ATE33581T1/en