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Priority to JP7490688UpriorityCriticalpatent/JPH01178053U/ja
Priority to DE68917895Tprioritypatent/DE68917895T2/de
Priority to US08/024,864prioritypatent/US5308323A/en
Priority to EP89906458Aprioritypatent/EP0377749B1/en
Priority to PCT/JP1989/000575prioritypatent/WO1989011889A1/ja
Priority to CA000609797Aprioritypatent/CA1337792C/en
Priority to CN89107131.8Aprioritypatent/CN1049974A/zh
Publication of JPH01178053UpublicationCriticalpatent/JPH01178053U/ja