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Priority to JP14946480UpriorityCriticalpatent/JPS6247151Y2/ja
Priority to GB8131489Aprioritypatent/GB2089130B/en
Priority to DE19813141629prioritypatent/DE3141629A1/de
Priority to US06/313,082prioritypatent/US4445009A/en
Publication of JPS5772522UpublicationCriticalpatent/JPS5772522U/ja
Application grantedgrantedCritical
Publication of JPS6247151Y2publicationCriticalpatent/JPS6247151Y2/ja