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Application filed by Wolfgang Baumann, Bethke Hans Joerg, Joerg Firnow, Horst Fischer, Peter Franke, Eberhard Heynisch, Meyer Fa Rudolf, Brigitte Schmidt, Peter Schmidtke, Dietrich VoigtfiledCriticalWolfgang Baumann
Priority to DD19630276ApriorityCriticalpatent/DD128749A1/de
Publication of DD128749A1publicationCriticalpatent/DD128749A1/de