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Priority to JP1987027329UpriorityCriticalpatent/JPS63135550U/ja
Priority to CN88100688Aprioritypatent/CN1017574B/zh
Priority to KR1019880001813Aprioritypatent/KR910008496B1/ko
Priority to EP19880102707prioritypatent/EP0281006A3/en
Priority to US07/160,272prioritypatent/US4903252A/en
Priority to CA000560020Aprioritypatent/CA1289238C/en
Publication of JPS63135550UpublicationCriticalpatent/JPS63135550U/ja
