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Priority to CS893483ApriorityCriticalpatent/CS276640B6/en
Publication of CS348389A3publicationCriticalpatent/CS348389A3/en
Publication of CS276640B6publicationCriticalpatent/CS276640B6/en
Process for the preparation of symmetrical benzophenones substituted by fluor-containing groups, their use and symmetrical benzophenones substituted by fluor-containing groups