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Priority to JP1979184744UpriorityCriticalpatent/JPS6232280Y2/ja
Priority to US06/162,243prioritypatent/US4299469A/en
Priority to DE3023832Aprioritypatent/DE3023832C2/de
Publication of JPS56102522UpublicationCriticalpatent/JPS56102522U/ja
Application grantedgrantedCritical
Publication of JPS6232280Y2publicationCriticalpatent/JPS6232280Y2/ja