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发明名称
Perforating gun
摘要
申请公布号
US2142583(A)
申请公布日期
1939.01.03
申请号
US19350021185
申请日期
1935.05.13
申请人
LANE-WELLS COMPANY
发明人
YARBROUGH HAROLD C.
分类号
E21B43/1185;F42D1/05
主分类号
E21B43/1185
代理机构
代理人
主权项
地址
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