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Application filed by Christoph Bergner, Detlef Groeger, Siegfried Johne, Barbara Jung, Klaus Schreiber, Guenther SembdnerfiledCriticalChristoph Bergner
Priority to DD19657376ApriorityCriticalpatent/DD128758A1/en
Publication of DD128758A1publicationCriticalpatent/DD128758A1/en