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 Ya-Chi ChenfiledCriticalYa-Chi Chen
Priority to TW90202209UpriorityCriticalpatent/TW500270U/en
Publication of TW500270UpublicationCriticalpatent/TW500270U/en