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Application filed by Veb Plastverarbeitungswerk SchwereinfiledCriticalVeb Plastverarbeitungswerk Schwerein
Priority to DD19332176ApriorityCriticalpatent/DD127064B1/de
Publication of DD127064A1publicationCriticalpatent/DD127064A1/de
Publication of DD127064B1publicationCriticalpatent/DD127064B1/de