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 Dirceu Rosa FerreirafiledCriticalDirceu Rosa Ferreira
Priority to BR7502759UpriorityCriticalpatent/BR7502759U/en
Publication of BR7502759UpublicationCriticalpatent/BR7502759U/en