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Application filed by Georg Pfeil, Juergen Henneberger, Peter Degenkolb, Lehmann Wolf Helge, Anita Voigt, Helga Meier, Peter BaumannfiledCriticalGeorg Pfeil
Priority to DD20453678ApriorityCriticalpatent/DD138490A3/xx
Priority to CS146879Aprioritypatent/CS222962B1/cs
Priority to PL21413879Aprioritypatent/PL214138A1/xx
Publication of DD138490A3publicationCriticalpatent/DD138490A3/xx