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Priority to JP17971283UpriorityCriticalpatent/JPS6087082U/ja
Priority to GB08429298Aprioritypatent/GB2152020B/en
Priority to KR2019840011868Uprioritypatent/KR900000323Y1/ko
Publication of JPS6087082UpublicationCriticalpatent/JPS6087082U/ja
Application grantedgrantedCritical
Publication of JPS6324533Y2publicationCriticalpatent/JPS6324533Y2/ja