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Application filed by Herrmann Urbach, Dieter Koch, Heinz Vierkante, Gotthard Erlen, Harald Schirmer, Herbert Kirschnick, Bernhard Nolte, Bernd FundamentfiledCriticalHerrmann Urbach
Priority to DD19422876ApriorityCriticalpatent/DD128434B1/de
Publication of DD128434A1publicationCriticalpatent/DD128434A1/de
Publication of DD128434B1publicationCriticalpatent/DD128434B1/de