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 Ching-Chang Li, Yan-Huei Huang, Tsung-Ming LifiledCriticalChing-Chang Li
Priority to TW90208992UpriorityCriticalpatent/TW497424U/en
Publication of TW497424UpublicationCriticalpatent/TW497424U/en