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Priority to JP1985187741UpriorityCriticalpatent/JPH0631197Y2/ja
Priority to US06/932,679prioritypatent/US4784088A/en
Publication of JPS6295195UpublicationCriticalpatent/JPS6295195U/ja
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Publication of JPH0631197Y2publicationCriticalpatent/JPH0631197Y2/ja