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发明名称
FREMGANGSMAATE OG INNRETNING FOR OVERVAAKNING AV RETNINGEN AV ET BOREHULL.
摘要
申请公布号
NO822825(A)
申请公布日期
1983.02.21
申请号
NO19820002825
申请日期
1982.08.19
申请人
NL SPERRY-SUN, INC.,
发明人
RUSSELL, ANTHONY WILLIAM,;RUSSELL, MICHAEL KING,
分类号
G01C21/00;E21B47/022;G01C19/00;G01C19/02;G01C19/22;(IPC1-7):E21B/;G01C/
主分类号
G01C21/00
代理机构
代理人
主权项
地址
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