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Priority to JP1986031989UpriorityCriticalpatent/JPH0349113Y2/ja
Priority to US07/021,838prioritypatent/US4793293A/en
Publication of JPS62144790UpublicationCriticalpatent/JPS62144790U/ja
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Publication of JPH0349113Y2publicationCriticalpatent/JPH0349113Y2/ja