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发明名称
CUTTER BEARING
摘要
申请公布号
AU502703(B2)
申请公布日期
1979.08.02
申请号
AU19760013151
申请日期
1976.04.20
申请人
SMITH INTERNATIONAL, INC.
发明人
R.E. RICKS;W.P. ROBINSON
分类号
E21B10/18;E21B10/22;E21B36/00;F16C37/00
主分类号
E21B10/18
代理机构
代理人
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