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Application filed by Radomir Ing Kypast, Jaroslav Casta, Karel Jakes, Josef ZikmundfiledCriticalRadomir Ing Kypast
Priority to CS867712ApriorityCriticalpatent/CS255049B1/en
Publication of CS771286A1publicationCriticalpatent/CS771286A1/en
Publication of CS255049B1publicationCriticalpatent/CS255049B1/en