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Priority claimed from PCT/SE1984/000086external-prioritypatent/WO1985004203A1/en
Application filed by Leif BerntssonfiledCriticalLeif Berntsson
Publication of FI854392ApublicationCriticalpatent/FI854392A/en
Publication of FI854392A0publicationCriticalpatent/FI854392A0/en