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Priority to JP1986140608UpriorityCriticalpatent/JPH0348823Y2/ja
Priority to EP87113480Aprioritypatent/EP0260659A3/en
Publication of JPS6347534UpublicationCriticalpatent/JPS6347534U/ja
Priority to US07/323,153prioritypatent/US4902863A/en
Application grantedgrantedCritical
Publication of JPH0348823Y2publicationCriticalpatent/JPH0348823Y2/ja