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经营范围
发明名称
PERFORATING CHARGE CASE
摘要
A shaped charge comprises a case. At least a portion of the case is formed of copper.
申请公布号
CA2569989(C)
申请公布日期
2009.10.13
申请号
CA20012569989
申请日期
2001.10.31
申请人
SCHLUMBERGER CANADA LIMITED
发明人
WERNER, ANDREW T.;GROVE, BRENDEN M.
分类号
E21B43/117;C22C9/00;F42B3/28
主分类号
E21B43/117
代理机构
代理人
主权项
地址
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