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 Americo Ferreira Coelho RelvasfiledCriticalAmerico Ferreira Coelho Relvas
Priority to PT793688UpriorityCriticalpatent/PT7936Y/en
Publication of PT7936UpublicationCriticalpatent/PT7936U/en
Publication of PT7936YpublicationCriticalpatent/PT7936Y/en