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Priority to JP1975156938UpriorityCriticalpatent/JPS5543361Y2/ja
Priority to US05/672,930prioritypatent/US4083626A/en
Priority to GB13764/76Aprioritypatent/GB1548944A/en
Priority to DE19762614606prioritypatent/DE2614606A1/de
Publication of JPS5269933UpublicationCriticalpatent/JPS5269933U/ja
Application grantedgrantedCritical
Publication of JPS5543361Y2publicationCriticalpatent/JPS5543361Y2/ja