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Priority to JP17267480UpriorityCriticalpatent/JPS639857Y2/ja
Priority to US06/315,519prioritypatent/US4510543A/en
Priority to GB8132417Aprioritypatent/GB2086642B/en
Priority to DE19813143198prioritypatent/DE3143198A1/de
Publication of JPS5794624UpublicationCriticalpatent/JPS5794624U/ja
Application grantedgrantedCritical
Publication of JPS639857Y2publicationCriticalpatent/JPS639857Y2/ja