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发明名称
Sequential electromagnetic control circuit for well explosive devices
摘要
申请公布号
US3209210(A)
申请公布日期
1965.09.28
申请号
US19590796452
申请日期
1959.03.02
申请人
LEWIS FOSTER JAMES
发明人
FOSTER JAMES LEWIS
分类号
E21B43/116;E21B43/1185;F42D1/04
主分类号
E21B43/116
代理机构
代理人
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地址
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