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 景澤發展工程有限公司filedCritical景澤發展工程有限公司
Priority to HK14111436.3ApriorityCriticalpatent/HK1197526A2/en
Publication of HK1197526A2publicationCriticalpatent/HK1197526A2/en