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经营范围
发明名称
Turbine à limitation d'usure pour le forage du sol
摘要
申请公布号
FR1174220(A)
申请公布日期
1959.03.09
申请号
FRD1174220
申请日期
1957.04.15
申请人
发明人
TIRASPOLSKY WLADIMIR;ROUVIERE ROGER-FRANCOIS;CHARE JEAN
分类号
E21B4/02;F03B13/02
主分类号
E21B4/02
代理机构
代理人
主权项
地址
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