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Application filed by Josef Ing Mach, Vladimir Ing Schopf, Jan Matula, Karel Ing TrojanfiledCriticalJosef Ing Mach
Priority to CS836901ApriorityCriticalpatent/CS690183A1/cs
Publication of CS690183A1publicationCriticalpatent/CS690183A1/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.