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公开(公告)号:US2816744A
公开(公告)日:1957-12-17
申请号:US44374454
申请日:1954-07-16
Applicant: SHELL DEV
Inventor: PENTHER CARL J
CPC classification number: B01F7/00241
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公开(公告)号:US2865197A
公开(公告)日:1958-12-23
申请号:US59212656
申请日:1956-06-18
Applicant: SHELL DEV
Inventor: PENTHER CARL J , GRIFFIN RAYMOND L , MILES THOMAS K , SIMPSON WARREN C
IPC: G01N11/00
CPC classification number: G01N11/00
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公开(公告)号:US2382743A
公开(公告)日:1945-08-14
申请号:US42833742
申请日:1942-01-26
Applicant: SHELL DEV
Inventor: PENTHER CARL J , ROLFSON FRANCIS B
IPC: G01V3/08
CPC classification number: G01V3/08
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公开(公告)号:US2703628A
公开(公告)日:1955-03-08
申请号:US32821652
申请日:1952-12-27
Applicant: SHELL DEV
Inventor: POMPEO DOMENICK J , PENTHER CARL J , NOLLER GEORGE W
IPC: B01D53/26
CPC classification number: B01D53/26 , B01D53/261
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公开(公告)号:US2594984A
公开(公告)日:1952-04-29
申请号:US8654249
申请日:1949-04-09
Applicant: SHELL DEV
Inventor: PENTHER CARL J , MILLIGAN WILLIAM B
IPC: G05D23/275
CPC classification number: G05D23/27539
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6.Electromagnetic method and apparatus for pipe line surveying and exploration 失效
Title translation: 管线测量与勘探用电磁法及装置公开(公告)号:US2358027A
公开(公告)日:1944-09-12
申请号:US42833842
申请日:1942-01-26
Applicant: SHELL DEV
Inventor: PENTHER CARL J , ROLFSON FRANCIS B
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