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 Ru-Lung TsaifiledCriticalRu-Lung Tsai
Priority to TW91207619UpriorityCriticalpatent/TW541987U/en
Publication of TW541987UpublicationCriticalpatent/TW541987U/en