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经营范围
发明名称
TUNNELING METHOD
摘要
申请公布号
JPH0483084(A)
申请公布日期
1992.03.17
申请号
JP19900195737
申请日期
1990.07.24
申请人
TAISEI CORP
发明人
NAKANISHI AKIRA;HASHIMOTO ISAO;ARIYAMA MOTOSHIGE
分类号
E21B7/18;E21D9/04;E21D9/10;E21D11/04;E21D11/10
主分类号
E21B7/18
代理机构
代理人
主权项
地址
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