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Priority to JP2401880UpriorityCriticalpatent/JPS56124934U/ja
Priority to GB8038136Aprioritypatent/GB2067356B/en
Priority to DE3044730Aprioritypatent/DE3044730C2/de
Priority to IT8068823Aprioritypatent/IT1167305B/it
Priority to FR8025440Aprioritypatent/FR2471660A1/fr
Publication of JPS56124934UpublicationCriticalpatent/JPS56124934U/ja