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Priority to JP1981029159UpriorityCriticalpatent/JPS6036562Y2/ja
Priority to KR2019820001314Uprioritypatent/KR880002042Y1/ko
Publication of JPS57143218UpublicationCriticalpatent/JPS57143218U/ja
Application grantedgrantedCritical
Publication of JPS6036562Y2publicationCriticalpatent/JPS6036562Y2/ja