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发明名称
FIRING HEAD
摘要
申请公布号
CA2024418(A1)
申请公布日期
1991.03.02
申请号
CA19902024418
申请日期
1990.08.31
申请人
AVILA, JOHN E.;GEORGE, KEVIN R.;WESSON, DAVID S.
发明人
AVILA, JOHN E.;GEORGE, KEVIN R.;WESSON, DAVID S.
分类号
E21B43/11;E21B43/116;E21B43/1185;E21B43/263
主分类号
E21B43/11
代理机构
代理人
主权项
地址
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