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发明名称
Control system for guiding boring tools and a sensing system for locating the same
摘要
申请公布号
EP0428180(B1)
申请公布日期
1995.12.27
申请号
EP19900122530
申请日期
1986.04.04
申请人
GAS RESEARCH INSTITUTE
发明人
PITTARD, GERARD T.;MAURER, WILLIAM C.;GIVLER, GREGORY C.;MCDONALD, WILLIAM J.;COHEN, JOHN H.;ENK, JOSEPH O.;BRIDGES, JACK E.
分类号
E21B4/14;E21B7/06;E21B7/26;E21B47/022;E21B47/12;(IPC1-7):E21B47/022
主分类号
E21B4/14
代理机构
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