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Application filed by Manfred Mittelstrass, Kuenne Hans Joachim, Lothar Moerl, Winfried Huth, Dietrich Braumann, Siegfried RossmannfiledCriticalManfred Mittelstrass
Priority to DD20801778ApriorityCriticalpatent/DD139020A1/de
Publication of DD139020A1publicationCriticalpatent/DD139020A1/de