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发明名称
Line inserting device for high pressure vessels
摘要
申请公布号
US2720266(A)
申请公布日期
1955.10.11
申请号
US19530384021
申请日期
1953.10.05
申请人
SHELL DEVELOPMENT COMPANY
发明人
BROUSSARD DOUGLAS E.;MCKINNEY HOWARD E.
分类号
E21B33/072
主分类号
E21B33/072
代理机构
代理人
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