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Priority to JP10828274UpriorityCriticalpatent/JPS5317064Y2/ja
Priority to US05/605,883prioritypatent/US4009502A/en
Publication of JPS5135831UpublicationCriticalpatent/JPS5135831U/ja
Application grantedgrantedCritical
Publication of JPS5317064Y2publicationCriticalpatent/JPS5317064Y2/ja