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 Chung-Jou Tsai, Yu-Dian ChenfiledCriticalChung-Jou Tsai
Priority to TW90220014UpriorityCriticalpatent/TW528215U/en
Publication of TW528215UpublicationCriticalpatent/TW528215U/en