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发明名称
Method and apparatus for accommodating telescoping action
摘要
申请公布号
US3354950(A)
申请公布日期
1967.11.28
申请号
US19650435152
申请日期
1965.02.25
申请人
HALLIBURTON COMPANY
发明人
HYDE WALTER E.
分类号
E21B17/07;E21B47/00
主分类号
E21B17/07
代理机构
代理人
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