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Priority to JP5788787UpriorityCriticalpatent/JPS63164977U/ja
Priority to DE3751172Tprioritypatent/DE3751172T2/de
Priority to EP87308485Aprioritypatent/EP0286755B1/en
Priority to US07/112,693prioritypatent/US4844002A/en
Publication of JPS63164977UpublicationCriticalpatent/JPS63164977U/ja