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 Lee Hyong YulfiledCriticalLee Hyong Yul
Priority to KR8207854UpriorityCriticalpatent/KR840001835Y1/en
Application grantedgrantedCritical
Publication of KR840001835Y1publicationCriticalpatent/KR840001835Y1/en