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 De Araujo M Ferreira, O KennesfiledCriticalDe Araujo M Ferreira
Priority to BR21293869ApriorityCriticalpatent/BR6912938D0/en
Publication of BR6912938D0publicationCriticalpatent/BR6912938D0/en