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 Marcel Sylvio HirschfiledCriticalMarcel Sylvio Hirsch
Priority to BR6501718UpriorityCriticalpatent/BR6501718U/en
Publication of BR6501718UpublicationCriticalpatent/BR6501718U/en