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经营范围
发明名称
Casing perforating gun
摘要
申请公布号
US2530805(A)
申请公布日期
1950.11.21
申请号
US19460700741
申请日期
1946.10.02
申请人
MCCULLOUGH TOOL COMPANY
发明人
BOND JOHN A.
分类号
E21B43/116
主分类号
E21B43/116
代理机构
代理人
主权项
地址
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