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Application filed by Sladky Vaclav, Petr JirasekfiledCriticalSladky Vaclav
Priority to CS881722ApriorityCriticalpatent/CS264649B1/en
Publication of CS172288A1publicationCriticalpatent/CS172288A1/en
Publication of CS264649B1publicationCriticalpatent/CS264649B1/en