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Priority to JP5707583UpriorityCriticalpatent/JPS59162339U/ja
Publication of JPS59162339UpublicationCriticalpatent/JPS59162339U/ja
Priority to US06/780,717prioritypatent/US4602319A/en
Application grantedgrantedCritical
Publication of JPS6246600Y2publicationCriticalpatent/JPS6246600Y2/ja