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Application filed by Karl Becker, Berrouschot Hans Dieter, Manfred Grossmann, Josef Hille, Heino John, Vera A Dzisko, Emmanuil A LevickijfiledCriticalKarl Becker
Priority to DD19953877ApriorityCriticalpatent/DD138006A3/en
Publication of DD138006A3publicationCriticalpatent/DD138006A3/en