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Application filed by Vlastislav Prazenka, Jiri Ing PaulikfiledCriticalVlastislav Prazenka
Priority to CS861969ApriorityCriticalpatent/CS255112B1/en
Publication of CS196986A1publicationCriticalpatent/CS196986A1/en
Publication of CS255112B1publicationCriticalpatent/CS255112B1/en