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.)
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Publication date
Application filed by Manuel De Sousa PortugalfiledCriticalManuel De Sousa Portugal
Priority to PT804789UpriorityCriticalpatent/PT8047Y/pt
Publication of PT8047UpublicationCriticalpatent/PT8047U/pt
Publication of PT8047YpublicationCriticalpatent/PT8047Y/pt