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Priority to JP1284287UpriorityCriticalpatent/JPS63121413U/ja
Priority to US07/149,168prioritypatent/US4839767A/en
Priority to CA000557745Aprioritypatent/CA1286361C/en
Priority to CN88100511.8Aprioritypatent/CN1009957B/zh
Priority to EP88101413Aprioritypatent/EP0277623A3/en
Publication of JPS63121413UpublicationCriticalpatent/JPS63121413U/ja