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 서상래filedCritical서상래
Priority to KR2019820008308UpriorityCriticalpatent/KR840000940Y1/en
Publication of KR840001858UpublicationCriticalpatent/KR840001858U/en
Application grantedgrantedCritical
Publication of KR840000940Y1publicationCriticalpatent/KR840000940Y1/en