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Application filed by Havranek Milan, Ando Jan, Frantisek Dolihal, Drkal Jaroslav, Musil Ivan, Eduard Sidlo, Vaclav SustrfiledCriticalHavranek Milan
Priority to CS836018ApriorityCriticalpatent/CS248753B1/cs
Publication of CS601883A1publicationCriticalpatent/CS601883A1/cs
Publication of CS248753B1publicationCriticalpatent/CS248753B1/cs