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 Oswaldo Marcassa JuniorfiledCriticalOswaldo Marcassa Junior
Priority to BR6901898UpriorityCriticalpatent/BR6901898U/en
Publication of BR6901898UpublicationCriticalpatent/BR6901898U/en