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Priority to JP1988020906UpriorityCriticalpatent/JPH0614285Y2/ja
Priority to CN 89102113prioritypatent/CN1015843B/zh
Priority to CN 89204143prioritypatent/CN2052139U/zh
Publication of JPH01124940UpublicationCriticalpatent/JPH01124940U/ja
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Publication of JPH0614285Y2publicationCriticalpatent/JPH0614285Y2/ja