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 Sheng-Chang JangfiledCriticalSheng-Chang Jang
Priority to TW90217655UpriorityCriticalpatent/TW509190U/en
Publication of TW509190UpublicationCriticalpatent/TW509190U/en