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经营范围
发明名称
Trépan rotatif extensible
摘要
申请公布号
FR1209674(A)
申请公布日期
1960.03.03
申请号
FRD1209674
申请日期
1958.08.27
申请人
发明人
KAMMERER ARCHER WILLIAM
分类号
E21B10/34
主分类号
E21B10/34
代理机构
代理人
主权项
地址
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