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发明名称
DRILLING BUCKET
摘要
申请公布号
JPH0726869(A)
申请公布日期
1995.01.27
申请号
JP19930194127
申请日期
1993.07.09
申请人
MARUGO KISO KOGYO KK
发明人
MIYAKE MASAO;MATSUMOTO HIRONORI
分类号
E21B11/00;(IPC1-7):E21B11/00
主分类号
E21B11/00
代理机构
代理人
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地址
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