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Application filed by Reinhard Nitzsche, Manfred Raetzsch, Siegfried Sieber, Ebster Klaus Dieter, Gerhard Bergmann, Reinhard Stueber, Schrader Hans Juergen, Hartmut Bucka, Hans HempelfiledCriticalReinhard Nitzsche
Priority to DD20806078ApriorityCriticalpatent/DD138665B1/de
Publication of DD138665A1publicationCriticalpatent/DD138665A1/de
Publication of DD138665B1publicationCriticalpatent/DD138665B1/de