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Priority to JP5527885UpriorityCriticalpatent/JPS61172184U/ja
Priority to EP86104395Aprioritypatent/EP0204093B1/en
Priority to CN86102196.7Aprioritypatent/CN1005035B/zh
Publication of JPS61172184UpublicationCriticalpatent/JPS61172184U/ja
Priority to US07/060,992prioritypatent/US4738284A/en