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经营范围
发明名称
TUBING HANGER ASSEMBLY
摘要
申请公布号
GB2048988(A)
申请公布日期
1980.12.17
申请号
GB19800014784
申请日期
1980.05.02
申请人
BAKER INTERNATIONAL CORP
发明人
分类号
E21B43/10;E21B43/14;(IPC1-7):E21B23/00
主分类号
E21B43/10
代理机构
代理人
主权项
地址
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