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发明名称
Butée à billes pour turbine de forage
摘要
申请公布号
FR1535451(A)
申请公布日期
1968.08.09
申请号
FR19660067989
申请日期
1966.07.01
申请人
INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS & LUBRIFIANTS
发明人
TIRASPOLSKY WLADIMIR;ROUVIERE ROGER
分类号
E21B4/00;E21B4/02;F16C27/08
主分类号
E21B4/00
代理机构
代理人
主权项
地址
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