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Priority to JP1975156939UpriorityCriticalpatent/JPS5543362Y2/ja
Priority to US05/672,930prioritypatent/US4083626A/en
Priority to GB13764/76Aprioritypatent/GB1548944A/en
Priority to DE19762614606prioritypatent/DE2614606A1/de
Publication of JPS5269934UpublicationCriticalpatent/JPS5269934U/ja
Application grantedgrantedCritical
Publication of JPS5543362Y2publicationCriticalpatent/JPS5543362Y2/ja