Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Horst Zehlicke, Guenther Arndt, Wolfgang Bergholz, Waltraud TribiusfiledCriticalHorst Zehlicke
Priority to DD20517278ApriorityCriticalpatent/DD136260B1/de
Priority to SU797770532Aprioritypatent/SU979293A1/ru
Priority to CS256479Aprioritypatent/CS217419B1/cs
Priority to DE19792916705prioritypatent/DE2916705B2/de
Publication of DD136260A1publicationCriticalpatent/DD136260A1/de
Publication of DD136260B1publicationCriticalpatent/DD136260B1/de