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
Publication of TW169020UpublicationCriticalpatent/TW169020U/zh
Application filedfiledCritical
Priority to TW79212654UpriorityCriticalpatent/TW169020U/zh