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Priority claimed from SE8002794Aexternal-prioritypatent/SE422037B/sv
Priority claimed from SE8006835Aexternal-prioritypatent/SE462120B/sv
Application filed by Karl Johan BostroemfiledCriticalKarl Johan Bostroem
Priority claimed from EP81850064Aexternal-prioritypatent/EP0038787B1/de
Application grantedgrantedCritical
Publication of ATE28944T1publicationCriticalpatent/ATE28944T1/de