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Priority to JP4739290UpriorityCriticalpatent/JPH047394U/ja
Priority to EP90307300Aprioritypatent/EP0407165B1/en
Priority to DE69015264Tprioritypatent/DE69015264T2/de
Priority to US07/548,369prioritypatent/US5237544A/en
Publication of JPH047394UpublicationCriticalpatent/JPH047394U/ja