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经营范围
发明名称
Tubing hanger assembly
摘要
申请公布号
GB860914(A)
申请公布日期
1961.02.15
申请号
GB19590040362
申请日期
1959.11.27
申请人
OIL CENTER TOOL COMPANY
发明人
分类号
E21B33/043
主分类号
E21B33/043
代理机构
代理人
主权项
地址
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