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Application filed by Josef NapravnikfiledCriticalJosef Napravnik
Priority to SK484390ApriorityCriticalpatent/SK278627B6/en
Priority to CS904843Aprioritypatent/CZ278023B6/en
Publication of CS484390A3publicationCriticalpatent/CS484390A3/en
Publication of CZ278023B6publicationCriticalpatent/CZ278023B6/en