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Priority to JP19957984UpriorityCriticalpatent/JPS61111885U/ja
Priority to US06/806,899prioritypatent/US4653762A/en
Priority to GB08531587Aprioritypatent/GB2169253B/en
Priority to FR858519162Aprioritypatent/FR2575433B1/fr
Publication of JPS61111885UpublicationCriticalpatent/JPS61111885U/ja
