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Application filed by Robert Ing Kopriva, Jan Ing Csc NovotnyfiledCriticalRobert Ing Kopriva
Priority to CS832132ApriorityCriticalpatent/CS231539B1/cs
Publication of CS213283A1publicationCriticalpatent/CS213283A1/cs
Publication of CS231539B1publicationCriticalpatent/CS231539B1/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.