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经营范围
发明名称
CIRCULATING CASING HANGER AND RUNNING TOOL APPARATUS
摘要
申请公布号
US3460615(A)
申请公布日期
1969.08.12
申请号
USD3460615
申请日期
1967.10.09
申请人
REGAN FORGE & ENG. CO.
发明人
BRUCE J. WATKINS
分类号
E21B33/00;E21B33/04;E21B33/14;(IPC1-7):E21B33/05;E21B43/10
主分类号
E21B33/00
代理机构
代理人
主权项
地址
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