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Priority to JP5052688UpriorityCriticalpatent/JPH0349109Y2/ja
Priority to CN 89101900prioritypatent/CN1012425B/zh
Publication of JPH01152889UpublicationCriticalpatent/JPH01152889U/ja
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Publication of JPH0349109Y2publicationCriticalpatent/JPH0349109Y2/ja