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Priority to JP8996685UpriorityCriticalpatent/JPH0532395Y2/ja
Priority to US06/874,340prioritypatent/US4735278A/en
Publication of JPS61204888UpublicationCriticalpatent/JPS61204888U/ja
Application grantedgrantedCritical
Publication of JPH0532395Y2publicationCriticalpatent/JPH0532395Y2/ja
