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 Difega SafiledCriticalDifega Sa
Publication of PT79554ApublicationCriticalpatent/PT79554A/en
Publication of PT79554BpublicationCriticalpatent/PT79554B/en