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 Secretaria De Educacao Do EstafiledCriticalSecretaria De Educacao Do Esta
Priority to BR6802292UpriorityCriticalpatent/BR6802292U/pt
Publication of BR6802292UpublicationCriticalpatent/BR6802292U/pt