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Priority claimed from DE3840485Aexternal-prioritypatent/DE3840485A1/de
Application filed by Mannesmann AgfiledCriticalMannesmann Ag
Publication of NO912076LpublicationCriticalpatent/NO912076L/no
Publication of NO912076D0publicationCriticalpatent/NO912076D0/no
Publication of NO169870BpublicationCriticalpatent/NO169870B/no
Publication of NO169870CpublicationCriticalpatent/NO169870C/no