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经营范围
发明名称
MACHINE D'EXTRACTION DE TERRAIN EN PRESENCE D'UN LIQUIDE
摘要
申请公布号
BE785831(A1)
申请公布日期
1972.11.03
申请号
BE19720785831
申请日期
1972.07.04
申请人
SOLETANCHE, 7, RUE DE LOGELBACH, PARIS, (FRANCE),
发明人
C. SOURICE
分类号
E21B4/00;E21B21/00;(IPC1-7):E02F/;E21B/
主分类号
E21B4/00
代理机构
代理人
主权项
地址
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