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经营范围
发明名称
Fremgangsmåte og apparat for datakommunikasjon i et brönnhull, og for deteksjon av gass-innströmning
摘要
申请公布号
NO943058(D0)
申请公布日期
1994.08.18
申请号
NO19940003058
申请日期
1994.08.18
申请人
BAKER HUGHES INC
发明人
OWENS, STEVEN C.;GIBBONS, FRANK LINDSAY;PATEL, ASHOK (NMI);LEGGETT III, JAMES V.;RORDEN, LOUIS HAROLD
分类号
E21B47/10;E21B47/14;E21B47/16;E21B47/18;G01V3/34;G08C23/00;G08C23/02;(IPC1-7):E21B
主分类号
E21B47/10
代理机构
代理人
主权项
地址
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