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发明名称
GROUND DRILLING APPARATUS
摘要
申请公布号
JPS62125199(A)
申请公布日期
1987.06.06
申请号
JP19850264581
申请日期
1985.11.25
申请人
SEYA MINORU
发明人
SEYA MINORU
分类号
E21D9/08;E21D9/12
主分类号
E21D9/08
代理机构
代理人
主权项
地址
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