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Application filed by Pospisil Bedrich, Miloslav SvobodafiledCriticalPospisil Bedrich
Priority to CS842161ApriorityCriticalpatent/CS242947B1/en
Publication of CS216184A1publicationCriticalpatent/CS216184A1/en
Publication of CS242947B1publicationCriticalpatent/CS242947B1/en