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发明名称
EXCAVATOR
摘要
申请公布号
JPH06323078(A)
申请公布日期
1994.11.22
申请号
JP19930116216
申请日期
1993.05.18
申请人
KOIDE:KK
发明人
KOIDE KATSUO
分类号
E21B10/32;E21B10/36;E21B10/40;(IPC1-7):E21B10/32
主分类号
E21B10/32
代理机构
代理人
主权项
地址
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