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Application filed by Jozef RuskofiledCriticalJozef Rusko
Priority to CS832494ApriorityCriticalpatent/CS239559B1/cs
Publication of CS249483A1publicationCriticalpatent/CS249483A1/cs
Publication of CS239559B1publicationCriticalpatent/CS239559B1/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.