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Priority to JP13374382UpriorityCriticalpatent/JPS5939481U/ja
Priority to US06/527,497prioritypatent/US4609956A/en
Priority to GB08323445Aprioritypatent/GB2127609B/en
Priority to DE19833331776prioritypatent/DE3331776A1/de
Publication of JPS5939481UpublicationCriticalpatent/JPS5939481U/ja
Application grantedgrantedCritical
Publication of JPS6327321Y2publicationCriticalpatent/JPS6327321Y2/ja