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Priority to JP1987141662UpriorityCriticalpatent/JPS6449892U/ja
Priority to US07/171,722prioritypatent/US4965950A/en
Priority to FR888803797Aprioritypatent/FR2612854B1/fr
Priority to KR1019880003088Aprioritypatent/KR930001229B1/ko
Publication of JPS6449892UpublicationCriticalpatent/JPS6449892U/ja
