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Priority to JP1973130482UpriorityCriticalpatent/JPS5419669Y2/ja
Priority to GB47271/74Aprioritypatent/GB1490855A/en
Priority to GB2146677Aprioritypatent/GB1490857A/en
Priority to GB2146577Aprioritypatent/GB1490856A/en
Priority to US05/520,039prioritypatent/US3994366A/en
Publication of JPS5074094UpublicationCriticalpatent/JPS5074094U/ja
Application grantedgrantedCritical
Publication of JPS5419669Y2publicationCriticalpatent/JPS5419669Y2/ja