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Application filed by Stanislav Ing Drapal, Zdenek Ing Precek, Jan Otcovsky, Lubos Rousek, Jozef HamerlikfiledCriticalStanislav Ing Drapal
Priority to CS858919ApriorityCriticalpatent/CS252131B1/en
Publication of CS891985A1publicationCriticalpatent/CS891985A1/en
Publication of CS252131B1publicationCriticalpatent/CS252131B1/en