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发明名称
Appareil à usages multiples pouvant servir d'appareil de forage à trep? fonctionnant soit à l'eau sous pression, soit à l'air comprimé, de ? aspirante et foulante, de compresseur ou de turbine
摘要
申请公布号
FR980398(A)
申请公布日期
1951.05.11
申请号
FRD980398
申请日期
1948.10.30
申请人
发明人
MAURIN ROGER-BENOIT
分类号
F03C2/30;F04C2/344
主分类号
F03C2/30
代理机构
代理人
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