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发明名称
Drill head
摘要
申请公布号
EP1279793(B1)
申请公布日期
2004.04.07
申请号
EP20020015007
申请日期
2002.07.04
申请人
BEHEERSMAATSCHAPPIJ VERSTRAETEN B.V.
发明人
VERSTRAETEN, ALEXANDER, J.
分类号
E02D5/36;E21B7/26;E21B10/44;(IPC1-7):E21B10/44
主分类号
E02D5/36
代理机构
代理人
主权项
地址
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