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Application filed by Sirokorad Jurij, Alexandr Ing Hahn, Vladimir Ing SobotkafiledCriticalSirokorad Jurij
Priority to CS847916ApriorityCriticalpatent/CS243148B1/en
Publication of CS791684A1publicationCriticalpatent/CS791684A1/en
Publication of CS243148B1publicationCriticalpatent/CS243148B1/en