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Priority to JP9653972UpriorityCriticalpatent/JPS5347669Y2/ja
Priority to GB3919273Aprioritypatent/GB1433426A/en
Priority to US389515Aprioritypatent/US3885354A/en
Publication of JPS4954889UpublicationCriticalpatent/JPS4954889U/ja
Application grantedgrantedCritical
Publication of JPS5347669Y2publicationCriticalpatent/JPS5347669Y2/ja