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发明名称	BLOCK FOR THE TUNNEL
摘要
申请公布号	KR850000425(Y1)	申请公布日期	1985.03.18
申请号	KR19810005566U	申请日期	1981.08.10
申请人	HAN, SUNG-BON	发明人	HAN, SUNG-BON
分类号	E21D11/18;(IPC1-7):E21D11/18	主分类号	E21D11/18
代理机构		代理人
主权项
地址

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