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 Mello Filho O De, Oliveira H DefiledCriticalMello Filho O De
Priority to BR7504791DpriorityCriticalpatent/BR7503730A/pt
Publication of BR7503730ApublicationCriticalpatent/BR7503730A/pt