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Priority to JP9027288UpriorityCriticalpatent/JPH0212772U/ja
Priority to US07/366,138prioritypatent/US5237560A/en
Priority to DE68921794Tprioritypatent/DE68921794T2/de
Priority to EP89306376Aprioritypatent/EP0348216B1/en
Publication of JPH0212772UpublicationCriticalpatent/JPH0212772U/ja
