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 Alcan BrasilfiledCriticalAlcan Brasil
Priority to BR6000762UpriorityCriticalpatent/BR6000762U/pt
Publication of BR6000762UpublicationCriticalpatent/BR6000762U/pt