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Application filed by Manfred Raetzsch, Werner Organo, Manfred Gebauer, Hartmut Bucka, Evelyn Grotzsch, Thomas Bach, Peter SchindlerfiledCriticalManfred Raetzsch
Priority to DD20805778ApriorityCriticalpatent/DD138622B1/de
Priority to SU797770773Aprioritypatent/SU1014728A1/ru
Publication of DD138622A1publicationCriticalpatent/DD138622A1/de
Publication of DD138622B1publicationCriticalpatent/DD138622B1/de