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发明名称
HOLE INTERVAL FINE GROOVE DRILLING DEVICE
摘要
申请公布号
JPH02157312(A)
申请公布日期
1990.06.18
申请号
JP19880311492
申请日期
1988.12.08
申请人
OKUMURA CORP
发明人
MURAKAMI SUSUMU
分类号
E02B7/02;E02D5/18;E02D17/13;E02F5/02
主分类号
E02B7/02
代理机构
代理人
主权项
地址
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