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发明名称
FREMGANGSMAATE OG ANORDNING FOR DETEKTERING AV AVFYRING AV PERFORERINGSKANON
摘要
申请公布号
NO842453(A)
申请公布日期
1984.12.21
申请号
NO19840002453
申请日期
1984.06.19
申请人
GEO VANN, INC,
发明人
COLLE, EDWARD ARTHUR JR.,;YATES, DONALD NORTON JR.,;HIGH, RICHARD GARY,
分类号
E21B43/1185;F42D1/06;F42D5/02;(IPC1-7):E21B/
主分类号
E21B43/1185
代理机构
代理人
主权项
地址
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