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 최윤식filedCritical최윤식
Priority to KR2019930003474UpriorityCriticalpatent/KR940022364U/en
Publication of KR940022364UpublicationCriticalpatent/KR940022364U/en