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Priority to JP1986161202UpriorityCriticalpatent/JPH0340191Y2/ja
Priority to US07/078,768prioritypatent/US4791687A/en
Publication of JPS6366963UpublicationCriticalpatent/JPS6366963U/ja
Application grantedgrantedCritical
Publication of JPH0340191Y2publicationCriticalpatent/JPH0340191Y2/ja
