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Priority claimed from DE3617245Aexternal-prioritypatent/DE3617245C1/de
Application filed by Engelbert SchmidtfiledCriticalEngelbert Schmidt
Publication of NO880192D0publicationCriticalpatent/NO880192D0/no
Publication of NO880192LpublicationCriticalpatent/NO880192L/no
Publication of NO165138BpublicationCriticalpatent/NO165138B/no
Publication of NO165138CpublicationCriticalpatent/NO165138C/no