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Application filed by Uwe RuettingerfiledCriticalUwe Ruettinger
Priority to DD19871277ApriorityCriticalpatent/DD131200B1/de
Priority to SU787770172Aprioritypatent/SU1041867A1/ru
Publication of DD131200A1publicationCriticalpatent/DD131200A1/de
Publication of DD131200B1publicationCriticalpatent/DD131200B1/de