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Application filed by Frantisek Machala, Emanuel Janderka, Josef KronekfiledCriticalFrantisek Machala
Priority to CS88201ApriorityCriticalpatent/CS268228B1/en
Publication of CS20188A1publicationCriticalpatent/CS20188A1/en
Publication of CS268228B1publicationCriticalpatent/CS268228B1/en