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Application filed by Grossmann Hans Juergen, Bernd Guettes, Renate Marquardt, Helmut Romanowski, Gisela Schmidt, Juergen WinklerfiledCriticalGrossmann Hans Juergen
Priority to DD20493178ApriorityCriticalpatent/DD136833B1/de
Publication of DD136833A1publicationCriticalpatent/DD136833A1/de
Publication of DD136833B1publicationCriticalpatent/DD136833B1/de