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Application filed by Tomas Ing Ruml, Silhankova Ludmila, Rauch PavelfiledCriticalTomas Ing Ruml
Priority to CS836693ApriorityCriticalpatent/CS239033B1/cs
Publication of CS669383A1publicationCriticalpatent/CS669383A1/cs
Publication of CS239033B1publicationCriticalpatent/CS239033B1/cs
Procedimiento para preparar derivados del acido 7beta-(carboxialquenoilamino)-(1-o,1-5 o 1-50)-3 cefem-4- carboxilico, y los intermediarios de aplicacion exclusiva en dicho procedimiento.