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发明名称
Trépan pour le forage du sol
摘要
申请公布号
FR1297304(A)
申请公布日期
1962.06.29
申请号
FR19610862278
申请日期
1961.05.19
申请人
TURBODRILL INTERNATIONAL CORPORATION
发明人
TIRASPOLSKY WLADIMIR
分类号
E21B10/00
主分类号
E21B10/00
代理机构
代理人
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