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Application filed by Vitalij V Andrianov, Vasilij I Pavuk, Oleg F TargonjafiledCriticalVitalij V Andrianov
Priority to CS813716ApriorityCriticalpatent/CS237770B1/en
Publication of CS371681A1publicationCriticalpatent/CS371681A1/en
Publication of CS237770B1publicationCriticalpatent/CS237770B1/en