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发明名称
Gun perforator
摘要
申请公布号
US2551031(A)
申请公布日期
1951.05.01
申请号
US19480016353
申请日期
1948.03.22
申请人
MCCULLOUGH TOOL COMPANY
发明人
MCCULLOUGH IRA J.
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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