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经营范围
发明名称
TUBE TARIERE A PERCUSSION
摘要
申请公布号
FR2544010(B3)
申请公布日期
1986.02.21
申请号
FR19830005898
申请日期
1983.04.07
申请人
CAMPGUILHEM JACQUES
发明人
分类号
E21B4/16;E21B10/40;(IPC1-7):E21B4/16;E21C1/12
主分类号
E21B4/16
代理机构
代理人
主权项
地址
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