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Application filed by Alfred Tzschach, Klaus Jurkschat, Gisela Quell, Ingeborg Duchek, Eckhart Nietzschmann, Ulf Thust, Pfeiffer Hans Dieter, Kurt Trautner, Werner KochmannfiledCriticalAlfred Tzschach
Priority to DD20313878ApriorityCriticalpatent/DD134529A1/de
Publication of DD134529A1publicationCriticalpatent/DD134529A1/de