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Priority to JP14626685UpriorityCriticalpatent/JPS6252939U/ja
Priority to DE19863611658prioritypatent/DE3611658A1/de
Priority to FR8604937Aprioritypatent/FR2580137A1/fr
Publication of JPS6252939UpublicationCriticalpatent/JPS6252939U/ja
Priority to US07/506,549prioritypatent/US5138521A/en