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发明名称
Apparatus for initiating fractures in earth formations
摘要
申请公布号
US3101051(A)
申请公布日期
1963.08.20
申请号
US19570675424
申请日期
1957.07.31
申请人
THE WESTERN COMPANY OF NORTH AMERICA
发明人
GILBERT BRUCE
分类号
E21B43/117;E21B43/263
主分类号
E21B43/117
代理机构
代理人
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地址
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