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发明名称
Method of and apparatus for shooting wells
摘要
申请公布号
US1875583(A)
申请公布日期
1932.09.06
申请号
US19300433054
申请日期
1930.03.04
申请人
GLENN FOX
发明人
FOX GLENN
分类号
E21B23/01;F42D1/22
主分类号
E21B23/01
代理机构
代理人
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