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Priority to JP2930487UpriorityCriticalpatent/JPS63136237U/ja
Priority to KR2019880002164Uprioritypatent/KR910001056Y1/ko
Priority to US07/161,051prioritypatent/US4840159A/en
Priority to DE3806186Aprioritypatent/DE3806186C3/de
Publication of JPS63136237UpublicationCriticalpatent/JPS63136237U/ja