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Application filed by Ullrich Heisig, Klaus Goedicke, Harald Bilz, Siegfried Schiller, Juergen Henneberger, Ingo Steinhauer, Hermann Labrenz, Guenther Beister, Wolfgang Sieber, Georg PfeilfiledCriticalUllrich Heisig
Priority to DD19433076ApriorityCriticalpatent/DD128714B1/en
Publication of DD128714A1publicationCriticalpatent/DD128714A1/en
Publication of DD128714B1publicationCriticalpatent/DD128714B1/en