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Priority to JP1987137061UpriorityCriticalpatent/JPS6442552U/ja
Priority to KR1019880003145Aprioritypatent/KR910008508B1/ko
Priority to EP91105193Aprioritypatent/EP0444715A1/en
Priority to EP88302754Aprioritypatent/EP0284445B1/en
Priority to DE8888302754Tprioritypatent/DE3871209D1/de
Publication of JPS6442552UpublicationCriticalpatent/JPS6442552U/ja
