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经营范围
发明名称
Shaped charge assembly and gun
摘要
申请公布号
US2947250(A)
申请公布日期
1960.08.02
申请号
US19510247984
申请日期
1951.09.24
申请人
WELEX, INC.
发明人
MOHAUPT HENRY H.
分类号
E21B43/117;F42B3/08
主分类号
E21B43/117
代理机构
代理人
主权项
地址
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