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Priority to JP1978032877UpriorityCriticalpatent/JPS6129554Y2/ja
Priority to US05/931,528prioritypatent/US4242799A/en
Priority to GB7833679Aprioritypatent/GB2005613B/en
Publication of JPS54136236UpublicationCriticalpatent/JPS54136236U/ja
Application grantedgrantedCritical
Publication of JPS6129554Y2publicationCriticalpatent/JPS6129554Y2/ja