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Priority to JP10099487UpriorityCriticalpatent/JPS649174U/ja
Priority to KR1019870015483Aprioritypatent/KR930001695B1/ko
Priority to EP88300677Aprioritypatent/EP0276994B1/en
Priority to DE8888300677Tprioritypatent/DE3876641T2/de
Priority to AU10972/88Aprioritypatent/AU598339B2/en
Publication of JPS649174UpublicationCriticalpatent/JPS649174U/ja
