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Priority to JP1981098974UpriorityCriticalpatent/JPS586437U/ja
Priority to KR2019820004085Uprioritypatent/KR860002473Y1/ko
Publication of JPS586437UpublicationCriticalpatent/JPS586437U/ja
Application grantedgrantedCritical
Publication of JPH0317474Y2publicationCriticalpatent/JPH0317474Y2/ja