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Priority to JP1976016191UpriorityCriticalpatent/JPS559873Y2/ja
Priority to US05/766,566prioritypatent/US4095304A/en
Publication of JPS52108876UpublicationCriticalpatent/JPS52108876U/ja
Application grantedgrantedCritical
Publication of JPS559873Y2publicationCriticalpatent/JPS559873Y2/ja