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Priority to JP1978038564UpriorityCriticalpatent/JPS5914875Y2/ja
Priority to DE2907801Aprioritypatent/DE2907801C2/de
Priority to US06/016,076prioritypatent/US4280034A/en
Publication of JPS54141997UpublicationCriticalpatent/JPS54141997U/ja
Application grantedgrantedCritical
Publication of JPS5914875Y2publicationCriticalpatent/JPS5914875Y2/ja