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发明名称
BOHRSTRANGELEMENT
摘要
申请公布号
AT337467(T)
申请公布日期
2006.09.15
申请号
AT20010978765T
申请日期
2001.10.09
申请人
R&B DOWNHOLE TECHNOLOGY GMBH
发明人
SPRINGER, JOHANN
分类号
B21D26/00;E21B17/00;E21B17/22;(IPC1-7):E21B17/16;B21D26/02;B21D26/08
主分类号
B21D26/00
代理机构
代理人
主权项
地址
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