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Application filed by Kukucka Vendelin, Josef Rychtera, Rudolf Ing Skrabal, Jan Ing BartekfiledCriticalKukucka Vendelin
Priority to CS843793ApriorityCriticalpatent/CS239824B1/en
Publication of CS379384A1publicationCriticalpatent/CS379384A1/en
Publication of CS239824B1publicationCriticalpatent/CS239824B1/en