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Application filed by Guenter Koehler, Peter Hohmann, Brinke Heinz Dieter, Helmut HauckfiledCriticalGuenter Koehler
Priority to DD19819577ApriorityCriticalpatent/DD130640B1/de
Publication of DD130640A1publicationCriticalpatent/DD130640A1/de
Publication of DD130640B1publicationCriticalpatent/DD130640B1/de