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 Hang Song Trading CorpfiledCriticalHang Song Trading Corp
Priority to KR868600670UpriorityCriticalpatent/KR870002941Y1/en
Application grantedgrantedCritical
Publication of KR870002941Y1publicationCriticalpatent/KR870002941Y1/en