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 Nian-Tzu Tang, Huei-Nan YufiledCriticalNian-Tzu Tang
Priority to TW89214906UpriorityCriticalpatent/TW472584U/en
Publication of TW472584UpublicationCriticalpatent/TW472584U/en