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Application filed by Nikola Ing Csc KaloforovfiledCriticalNikola Ing Csc Kaloforov
Priority to CS842324ApriorityCriticalpatent/CS243560B1/cs
Publication of CS232483A1publicationCriticalpatent/CS232483A1/cs
Publication of CS243560B1publicationCriticalpatent/CS243560B1/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.