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发明名称
MICRO-TUNNELLING METHOD
摘要
申请公布号
KR930008602(B1)
申请公布日期
1993.09.10
申请号
KR19890003056
申请日期
1989.03.13
申请人
MITSUI CYANAMID CO., LTD.
发明人
ITODA, HIROSHI;WATANABE, NAOTAKA;HOSOYA, YOSHIO;TAMURA, AKIRA
分类号
E21D9/06;B01J13/00;C08J3/09;C09K8/03;C09K8/04;C09K8/24;(IPC1-7):C09K7/02
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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