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 Yau-Tzung ChenfiledCriticalYau-Tzung Chen
Priority to TW89215473UpriorityCriticalpatent/TW499095U/en
Publication of TW499095UpublicationCriticalpatent/TW499095U/en