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发明名称
EXCAVATOR HAVING LEADER MAST
摘要
申请公布号
JPH05340181(A)
申请公布日期
1993.12.21
申请号
JP19920172019
申请日期
1992.06.06
申请人
OOHORI:KK
发明人
OHORI MASATO
分类号
E21B15/00;(IPC1-7):E21B15/00
主分类号
E21B15/00
代理机构
代理人
主权项
地址
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