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Priority claimed from DE3420412Aexternal-prioritypatent/DE3420412C2/en
Application filed by Voith Gmbh J MfiledCriticalVoith Gmbh J M
Publication of FI874232A0publicationCriticalpatent/FI874232A0/en
Publication of FI874232ApublicationCriticalpatent/FI874232A/en
Application grantedgrantedCritical
Publication of FI81507BpublicationCriticalpatent/FI81507B/en
Publication of FI81507CpublicationCriticalpatent/FI81507C/en