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发明名称
Jet perforating gun
摘要
申请公布号
US2818808(A)
申请公布日期
1958.01.07
申请号
US19540421562
申请日期
1954.04.07
申请人
SHELDON DILL WINNEFRED
发明人
DILL WINNEFRED SHELDON
分类号
E21B43/117
主分类号
E21B43/117
代理机构
代理人
主权项
地址
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