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公开(公告)号:US2816009A
公开(公告)日:1957-12-10
申请号:US44890954
申请日:1954-08-10
Applicant: SCHLUMBERGER WELL SURV CORP
Inventor: ANDRE BLANCHARD
IPC: G01V9/00
CPC classification number: G01V9/00
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公开(公告)号:US2951198A
公开(公告)日:1960-08-30
申请号:US43014954
申请日:1954-05-17
Applicant: SCHLUMBERGER WELL SURV CORP
Inventor: ANDRE BLANCHARD
IPC: E21B47/10
CPC classification number: E21B47/102
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公开(公告)号:US2725713A
公开(公告)日:1955-12-06
申请号:US28757252
申请日:1952-05-13
Applicant: SCHLUMBERGER WELL SURV CORP
Inventor: ANDRE BLANCHARD
IPC: H01B7/22
CPC classification number: H01B7/226 , H01B7/046 , Y10T74/20456 , Y10T428/2936 , Y10T428/2944 , Y10T428/2976
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公开(公告)号:US3153696A
公开(公告)日:1964-10-20
申请号:US57078056
申请日:1956-03-12
Applicant: SCHLUMBERGER WELL SURV CORP
Inventor: ANDRE BLANCHARD
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5.Electro-acoustic transducer having coaxially spaced cylindrical coils 失效
Title translation: 具有同轴间隔圆柱形线圈的电声换能器公开(公告)号:US2964730A
公开(公告)日:1960-12-13
申请号:US49050055
申请日:1955-02-25
Applicant: SCHLUMBERGER WELL SURV CORP
Inventor: ANDRE BLANCHARD
IPC: G10K9/12
CPC classification number: G10K9/12
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公开(公告)号:US2604509A
公开(公告)日:1952-07-22
申请号:US1928148
申请日:1948-04-06
Applicant: SCHLUMBERGER WELL SURV CORP
Inventor: ANDRE BLANCHARD
IPC: H01B7/04
CPC classification number: H01B7/046
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7.
公开(公告)号:US2553233A
公开(公告)日:1951-05-15
申请号:US57853045
申请日:1945-02-17
Applicant: SCHLUMBERGER WELL SURV CORP
Inventor: ANDRE BLANCHARD
IPC: G01N29/02
CPC classification number: G01N29/02 , G01N2291/02827
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公开(公告)号:US3142145A
公开(公告)日:1964-07-28
申请号:US25405063
申请日:1963-01-28
Applicant: SCHLUMBERGER WELL SURV CORP
Inventor: ANDRE BLANCHARD
CPC classification number: D07B3/06 , D07B1/0693 , D07B1/08 , D07B7/025 , D07B2201/2002 , D07B2201/2003 , D07B2801/22
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公开(公告)号:US2983586A
公开(公告)日:1961-05-09
申请号:US69507157
申请日:1957-11-07
Applicant: SCHLUMBERGER WELL SURV CORP
Inventor: ANDRE BLANCHARD
IPC: G01V9/00
CPC classification number: G01V9/005
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公开(公告)号:US2903070A
公开(公告)日:1959-09-08
申请号:US53619055
申请日:1955-09-23
Applicant: SCHLUMBERGER WELL SURV CORP
Inventor: ANDRE BLANCHARD
IPC: E21B49/10
CPC classification number: E21B49/10
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