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发明名称
Foringsrorskraper
摘要
申请公布号
NO20051230(D0)
申请公布日期
2005.03.10
申请号
NO20050001230
申请日期
2005.03.10
申请人
SMITH INTERNATIONAL INC
发明人
MCGARIAN BRUCE;TULLOCH RORY MCRAE
分类号
B08B9/02;E21B;E21B37/02;E21B37/08;(IPC1-7):E21B
主分类号
B08B9/02
代理机构
代理人
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