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Priority to JP2437585UpriorityCriticalpatent/JPS61140295U/ja
Priority to KR2019860001818Uprioritypatent/KR900002232Y1/ko
Priority to GB08604376Aprioritypatent/GB2173550B/en
Publication of JPS61140295UpublicationCriticalpatent/JPS61140295U/ja
