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Application filed by Jan Kabatek, Jindrich Novacek, Trnka Jan, Vladimir Salomoun, Karel Klumpar, Jarmila KrulovafiledCriticalJan Kabatek
Priority to CS857791ApriorityCriticalpatent/CS251431B1/en
Publication of CS779185A1publicationCriticalpatent/CS779185A1/en
Publication of CS251431B1publicationCriticalpatent/CS251431B1/en