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Priority to JP1976055504UpriorityCriticalpatent/JPS5731167Y2/ja
Priority to US05/793,194prioritypatent/US4149365A/en
Publication of JPS52150635UpublicationCriticalpatent/JPS52150635U/ja
Application grantedgrantedCritical
Publication of JPS5731167Y2publicationCriticalpatent/JPS5731167Y2/ja
