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 Metal Ind Res & Dev Ct, Technology Base CorpfiledCriticalMetal Ind Res & Dev Ct
Priority to TW92206736UpriorityCriticalpatent/TW577356U/en
Publication of TW577356UpublicationCriticalpatent/TW577356U/en