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经营范围
发明名称
TUNNEL EXCAVATING DEVICE
摘要
申请公布号
JPH09235979(A)
申请公布日期
1997.09.09
申请号
JP19960069135
申请日期
1996.02.29
申请人
MAEDA CORP
发明人
TAKAMORI SADAHIKO;KASUYA TADANORI;NABETA KUNIO
分类号
E21D9/00;E21B7/02;E21B15/00;E21B19/08;E21D9/10;E21D11/10;(IPC1-7):E21D9/00
主分类号
E21D9/00
代理机构
代理人
主权项
地址
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