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发明名称
Outils de forage à percussion
摘要
申请公布号
FR1369365(A)
申请公布日期
1964.08.14
申请号
FR19630930997
申请日期
1963.04.09
申请人
INGERSOLL-RAND COMPANY
发明人
分类号
E21B4/16
主分类号
E21B4/16
代理机构
代理人
主权项
地址
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