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 Cerqueira Lima Pedreira Da Sil, Silva Elias Bacelar Filho DafiledCriticalCerqueira Lima Pedreira Da Sil
Priority to BR7600046UpriorityCriticalpatent/BR7600046U/en
Publication of BR7600046UpublicationCriticalpatent/BR7600046U/en