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经营范围
发明名称
CONSTRUCTING METHOD FOR UNDERGROUND LARGE CAVITY
摘要
申请公布号
JPH01230894(A)
申请公布日期
1989.09.14
申请号
JP19880054792
申请日期
1988.03.10
申请人
MITSUI CONSTR CO LTD
发明人
ITO TATSUO
分类号
E21D9/06;E21D13/00;E21D13/02
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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