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Priority to JP1978159796UpriorityCriticalpatent/JPS572126Y2/ja
Priority to US06/091,742prioritypatent/US4293236A/en
Publication of JPS5576155UpublicationCriticalpatent/JPS5576155U/ja
Application grantedgrantedCritical
Publication of JPS572126Y2publicationCriticalpatent/JPS572126Y2/ja