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Priority claimed from DD18585775Aexternal-prioritypatent/DD119643A1/xx
Priority claimed from DD18588475Aexternal-prioritypatent/DD119642A1/xx
Priority claimed from DD18591175Aexternal-prioritypatent/DD121367A1/xx
Application filed by Frank Badstuebner, Wolfgang Bluemel, Joachim Trommer, Ulrich Franz, Johannes SahlfiledCriticalFrank Badstuebner
Publication of CS183367B1publicationCriticalpatent/CS183367B1/cs