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Application filed by Arnost Felkl, Miloslav SochackyfiledCriticalArnost Felkl
Priority to CS8210006ApriorityCriticalpatent/CS230923B1/en
Publication of CS1000682A1publicationCriticalpatent/CS1000682A1/en
Publication of CS230923B1publicationCriticalpatent/CS230923B1/en