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经营范围
发明名称
DRILLING MACHINE
摘要
申请公布号
JPH09151689(A)
申请公布日期
1997.06.10
申请号
JP19950327974
申请日期
1995.11.22
申请人
KAIHATSU CONCRETE KK
发明人
MORIKAWA EIICHI
分类号
E21B7/02;E21B7/04;E21B15/00;E21B15/04;E21B19/08;(IPC1-7):E21C11/00
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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