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Priority claimed from DE2749539Aexternal-prioritypatent/DE2749539C3/de
Application filed by Mannesmann Ag, Wiegard Maschf GustavfiledCriticalMannesmann Ag
Priority to AT337580ApriorityCriticalpatent/AT375286B/de
Publication of ATA337580ApublicationCriticalpatent/ATA337580A/de
Application grantedgrantedCritical
Publication of AT375286BpublicationCriticalpatent/AT375286B/de