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 Friedrich Max SchultheissfiledCriticalFriedrich Max Schultheiss
Priority to BR6802509UpriorityCriticalpatent/BR6802509U/pt
Publication of BR6802509UpublicationCriticalpatent/BR6802509U/pt