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Application filed by Wolfgang Barsig, Manfred Scheurich, Wagner GuenterfiledCriticalWolfgang Barsig
Priority to DD20400578ApriorityCriticalpatent/DD134860B1/de
Publication of DD134860A1publicationCriticalpatent/DD134860A1/de
Publication of DD134860B1publicationCriticalpatent/DD134860B1/de