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发明名称
ELEVATING MECHANISM FOR EXCAVATING DEVICE
摘要
申请公布号
JPH10331561(A)
申请公布日期
1998.12.15
申请号
JP19970140773
申请日期
1997.05.30
申请人
KINKI ISHIKO KK
发明人
NISHISAKA SHIYOUJI
分类号
E21B7/00;(IPC1-7):E21B7/00
主分类号
E21B7/00
代理机构
代理人
主权项
地址
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