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Priority to JP3772587UpriorityCriticalpatent/JPS63146462U/ja
Priority to KR1019880000837Aprioritypatent/KR910000087B1/ko
Priority to US07/165,593prioritypatent/US4893042A/en
Publication of JPS63146462UpublicationCriticalpatent/JPS63146462U/ja