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 Jang Sung KimfiledCriticalJang Sung Kim
Priority to KR8004143UpriorityCriticalpatent/KR810002558Y1/ko
Application grantedgrantedCritical
Publication of KR810002558Y1publicationCriticalpatent/KR810002558Y1/ko