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 Impermab S A Ind E ComerciofiledCriticalImpermab S A Ind E Comercio
Priority to BR6500215UpriorityCriticalpatent/BR6500215U/pt
Publication of BR6500215UpublicationCriticalpatent/BR6500215U/pt