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Application filed by Jan Jambrich, Milan Gulan, Tibor Felcan, Pavol KolecanskyfiledCriticalJan Jambrich
Priority to CS873906ApriorityCriticalpatent/CS260384B1/en
Publication of CS390687A1publicationCriticalpatent/CS390687A1/en
Publication of CS260384B1publicationCriticalpatent/CS260384B1/en