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Priority to BE541685ApriorityCriticalpatent/BE541685A/fr
Publication of BE541685ApublicationCriticalpatent/BE541685A/fr
BE541685A1955-09-291955-09-29Regle permettant de determiner rapidement et aisement les periodes de fecondation suivant la methode dite : "ogino".
BE541685A
(fr)