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 Ok Hwan KimfiledCriticalOk Hwan Kim
Priority to KR7801173UpriorityCriticalpatent/KR780001675Y1/ko
Application grantedgrantedCritical
Publication of KR780001675Y1publicationCriticalpatent/KR780001675Y1/ko