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发明名称
Hydraulisk slagverktöy
摘要
申请公布号
NO962898(D0)
申请公布日期
1996.07.10
申请号
NO19960002898
申请日期
1996.07.10
申请人
HOUSTON ENGINEERS INC
发明人
ROBERT, BILLY JAMES
分类号
E21B;E21B31/113;(IPC1-7):E21B
主分类号
E21B
代理机构
代理人
主权项
地址
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