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Priority to JP1987088765UpriorityCriticalpatent/JPH072254Y2/ja
Priority to US07/200,432prioritypatent/US4858895A/en
Publication of JPS63196705UpublicationCriticalpatent/JPS63196705U/ja
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Publication of JPH072254Y2publicationCriticalpatent/JPH072254Y2/ja