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Priority to JP1977151048UpriorityCriticalpatent/JPS578458Y2/ja
Priority to AU40576/78Aprioritypatent/AU529856B2/en
Priority to GB7839918Aprioritypatent/GB2011234A/en
Publication of JPS5476296UpublicationCriticalpatent/JPS5476296U/ja
Application grantedgrantedCritical
Publication of JPS578458Y2publicationCriticalpatent/JPS578458Y2/ja