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 Jung-Hsin Sung, Cheng-Hui SungfiledCriticalJung-Hsin Sung
Priority to TW92208428UpriorityCriticalpatent/TW576378U/en
Publication of TW576378UpublicationCriticalpatent/TW576378U/en