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Priority to JP19958686UpriorityCriticalpatent/JPS6314245U/ja
Priority to EP19870900694prioritypatent/EP0252993A4/en
Priority to PCT/JP1987/000017prioritypatent/WO1987004269A1/ja
Publication of JPS6314245UpublicationCriticalpatent/JPS6314245U/ja