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经营范围
发明名称
Trépan à balayage circulaire total pour le forage du sol
摘要
申请公布号
FR1363376(A)
申请公布日期
1964.06.12
申请号
FR19630933426
申请日期
1963.05.02
申请人
发明人
TIRASPOLSKY WLADIMIR
分类号
E21B10/04;E21B10/46;E21B10/60
主分类号
E21B10/04
代理机构
代理人
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