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Priority to JP11168376UpriorityCriticalpatent/JPS585316Y2/ja
Priority to GB1808677Aprioritypatent/GB1577422A/en
Publication of JPS5329271UpublicationCriticalpatent/JPS5329271U/ja
Application grantedgrantedCritical
Publication of JPS585316Y2publicationCriticalpatent/JPS585316Y2/ja