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 Asahi Lite Optical Co LtdfiledCriticalAsahi Lite Optical Co Ltd
Priority to HK02102173.3ApriorityCriticalpatent/HK1040777A1/zh
Publication of HK1040777A1publicationCriticalpatent/HK1040777A1/zh