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经营范围
发明名称
SKJOETEANORDNING FOR BOREROER.
摘要
申请公布号
NO870917(D0)
申请公布日期
1987.03.05
申请号
NO19870000917
申请日期
1987.03.05
申请人
ALSTHOM, SA
发明人
RIGHI, HERVE;OBRECHT, GEORGES
分类号
E21B17/046;E21B17/06;(IPC1-7):E21B/
主分类号
E21B17/046
代理机构
代理人
主权项
地址
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