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经营范围
发明名称
DRILLING MACHINE
摘要
申请公布号
JPS60184191(A)
申请公布日期
1985.09.19
申请号
JP19840039737
申请日期
1984.03.03
申请人
HITACHI KENKI KK
发明人
MORIYASU HIROAKI
分类号
E21B7/02
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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