Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institutul Politehnic "Traian Vuia",RofiledCriticalInstitutul Politehnic "Traian Vuia",Ro
Priority to RO81106501ApriorityCriticalpatent/RO78414A2/ro
Publication of RO78414A2publicationCriticalpatent/RO78414A2/ro
Appareil pedagogique pour la representation d'elements phonetiques et, en particulier, des sons d'une langue faisant l'objet d'un enseignement