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经营范围
发明名称
BORING DEVICE WITH HAMMER
摘要
申请公布号
JPH09324592(A)
申请公布日期
1997.12.16
申请号
JP19960140555
申请日期
1996.06.04
申请人
KANEKO YUJI
发明人
KANEKO YUJI
分类号
E21B4/14;(IPC1-7):E21B4/14
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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