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Priority to JP1985092649UpriorityCriticalpatent/JPH0356051Y2/ja
Priority to US06/796,814prioritypatent/US4723899A/en
Publication of JPS622247UpublicationCriticalpatent/JPS622247U/ja
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Publication of JPH0356051Y2publicationCriticalpatent/JPH0356051Y2/ja