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Application filed by Helmut OsbergerfiledCriticalHelmut Osberger
Priority to NO871508ApriorityCriticalpatent/NO175213C/en
Publication of NO871508D0publicationCriticalpatent/NO871508D0/en
Publication of NO871508LpublicationCriticalpatent/NO871508L/en
Publication of NO175213BpublicationCriticalpatent/NO175213B/no
Publication of NO175213CpublicationCriticalpatent/NO175213C/en